ESTIMATION

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ESTIMATION

• Estimation is the scientific way of working out
  the approximate cost of an engineering project
  before execution of the work.
• It is totally different from calculation of the
  exact cost after completion of the project.
• Estimation requires a thorough Knowledge of the
  construction procedures and cost of materials
  labour in addition to the skill , experience,
  foresight and good judgment.

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ESTIMATE

• An estimate of the cost of a construction job is
  the probable cost of that job as computed from
  plans and specifications.
• For a good estimate the, actual cost of the
  proposed work after completion should not differ
  by more then 5 to 10 from its approximate cost
  estimate, provided there are no unusual,
  unforeseen circumstances.

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NEED FOR ESTIMATE

• 1. It help to work out the approximate cost of
  the project in order to decide its feasibility
  with respect to the cost and to ensure the
  financial resources, it the proposal is approved.
• 2. Requirements of controlled materials, such as
  cement and steel can be estimated for making
  applications to the controlling authorities.
• 3. It is used for framing the tenders for the
  works and to check contractors work during and
  after the its execution for the purpose of making
  payments to the contractor.
• 4. From quantities of different items of work
  calculated in detailed estimation, resources are
  allocated to different activities of the project
  and ultimately their durations and whole planning
  and scheduling of the project is carried out.

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SITE CONDITIONS AFFECTING THE OVERALL COST

• 1 Each type of work requires a different method
  of construction. Construction may be of an
  ordinary house or office and it may also be of a
  Dam, Tunnel, Multistory building, Airport,
  Bridge, or a Road, already in operation. Each of
  these works requires totally different
  construction techniques, type of machinery, and
  formwork.
• 2 Quality of labour and labour output varies in
  different localities.
• 3 Weather conditions greatly affect the output
  and, hence, the overall cost.

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SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-)

• 4. Ground conditions vary and change the method
  of construction. For example, excavation may be
  dry, wet, hard, soft, shallow or deep requiring
  different efforts.
• 5. The work may be in open ground such as fields
  or it may be in congested areas such as near or
  on the public roads, necessitating extensive
  watching, lightening, and controlling efforts,
  etc.

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SITE CONDITIONS AFFECTING THE OVERALL COST (-ctd-)

• 6. The source of availability of a sufficient
  supply of materials of good quality is also a
  factor.
• 7. The availability of construction machinery
  also affects the method of construction.
• 8. Access to the site must be reasonable. If the
  access is poor, temporary roads may be
  constructed.

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ESSENTIAL QUALITIES OF A GOOD ESTIMATOR

• In preparing an estimate, the Estimator must have
  good knowledge regarding the important rules of
  quantity surveying.
• He must thoroughly understand the drawings of the
  structure, for which he is going to prepare an
  estimate.
• He must also be clearly informed about the
  specifications showing nature and classes of
  works and the materials to be used because the
  rates at which various types of works can be
  executed depend upon its specifications.

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ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)

• A good estimator of construction costs should
  possess the following capabilities, also-
• 1 A knowledge of the details of construction
  work.
• 2 Experience in construction work.
• 3 Having information regarding the materials
  required, machinery needed, overhead problems,
  and costs of all kinds.
• 4 Good judgment with regard to different
  localities, different jobs and different workmen.
• 5 Selection of a good method for preparing an
  estimate.
• 6 Ability to be careful, thorough, hard working
  and accurate.
• 7 Ability to collect, classify and evaluate
  data relating to estimation.
• 8 Ability to visualize all the steps during the
  process of construction.

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ESSENTIAL QUALITIES OF A GOOD ESTIMATOR (-ctd-)

• Before preparing the estimate, the estimator
  should visit the site and make a study of
  conditions, there. For example, if the
  construction of a large building is planned, the
  estimator or his representative should visit the
  site and
• Note the location of the proposed building.
• Get all data available regarding the soil.
• Make a sketch of the site showing all important
  details.
• Obtain information concerning light, power, and
  water.
• Secure information concerning banking
  facilities.
• Note conditions of streets leading to railway
  yards and to material dealers, and
• Investigate general efficiency of local workman.

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TYPES OF ESTIMATES

• There are two main types of estimates-
• 1 Rough cost estimate.
• 2 Detailed estimate.
• Depending upon the purpose of estimate, some
  types of detailed estimate are as follows-
• Contractor's estimate
• Engineer's estimate
• Progress estimate

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I Rough cost estimate

• Estimation of cost before construction from plans
  or architectural drawings of the project scheme,
  when even detailed or structural design has not
  been carried out, is called Rough cost estimate.
• These estimates are used for obtaining
  Administrative Approval from the concerning
  Authorities.
• Sometimes, on the basis of rough cost estimates,
  a proposal may be dropped altogether.

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Rough cost estimate (-ctd-)

• Unit cost is worked out for projects similar to
  the project under consideration carried out
  recently in nearly the same site conditions.
• Unit cost means cost of execution of a unit
  quantity of the work.

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Rough cost estimate (-ctd-)

• To find rough cost of any project, this worked
  average unit cost is multiplied with total
  quantity of the present work in the same units.
• For example, in case of a building, plinth area
  (sq. ft.) of the proposed building is worked out,
  which is then multiplied by the cost per unit
  area (Rs. /ft2) of similar building actually
  constructed in the near past in nearly the same
  site conditions, to find out the rough cost
  estimate of the building.
• This cost is sometimes adjusted by the average
  percentage rise in the cost of materials and
  wages.

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Rough cost estimate

• The rough cost estimate may be prepared on the
  following basis for different types of projects
• 1. Cost per square foot of covered area
  (plinth area) is the most commonly adopted
  criterion for preparing rough cost estimate for
  most of the residential buildings.
• 2. For public buildings, cost. Per person
  (cost per capita) is used. For example,
• Students hostel-cost per student
• HospitalsCost per bed
• HotelCost per Guest

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Rough cost estimate (-ctd-)

• Cost per cubic foot is particularly suitable for
  commercial offices, shopping centers, and factory
  buildings, etc.
• For water tank/reservoir, cost may be worked out
  on the basis of capacity in gallons of water
  stored.
• For roads and railways, cost may be found out
  per mile/kilometer of length.
• For streets, cost may be per hundred feet/meters
  of length.
• 7. In case of bridges, cost per foot/meter of
  clear span may be calculated.

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EXAMPLE 01

• Calculate the total rough cost estimate and cost
  per Flat for a multi-storey (4-storeyed) block
  consisting of 40 residential flats. Other details
  are given in the table

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Sr. No PORTION AREA (sq. ft) UNIT COST (Rs./sq.ft.) UNIT COST (Rs./sq.ft.) UNIT COST (Rs./sq.ft.) UNIT COST (Rs./sq.ft.)
Sr. No PORTION AREA (sq. ft) Building Works Sanitory Works Electric Services Sui Gas Services
1 Main Flat Area (i) Ground Floor (ii) Ist Floor (iii) 2nd Floor (iv) 3rd Floor 20030 20030 20030 20030 1800 1500 1650 1800 130 130 130 130 100 100 100 100 60 60 60 60
2 Park Area at G. Floor 75,800 800 -------- 40 -------
3 Circulation Area in all 4 floors 1936 1050 -------- 70 -------
4 Covered Shopping Area at G. Floor 920 950 -------- 70 -------
5 Attached Servant Quarters 2112 1150 55 70 40
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Add the following costs as Lump Sum

• 1- Road and Walkways 15,00,000/-
• 2- Land Scapping 12,00,000/-
• 3- External Sewerage 7,00,000/-
• 4- External Water Supply, Overhead and
  Underground Water Tanks with pumping machinery
  for each set of Flats 19,00,000/-
• 5- External Electricity 3,00,000/-
• 6- Boundary Wall 6,00,000/-
• 7- Miscellaneous unforeseen items
• 8,00,000/-
• 8- Add 6 development charges.
• 9- Add 3 consultancy charges

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EXAMPLE 2

• Prepare a Rough-cost Estimate of a residential
  building project with a total plinth area of all
  building of 1500 sq.m. given that
•  Plinth Area Rate Rs 950.00 / sq. ft.
• Extra for special architectural treatment
  1.5 of the buiding cost.
• Extra for water supply and sanitary installations
  5 of the building cost.
• Extra for internal installations 14 of the
  buiding cost
• Extra for Electric Sui gas services 16 of
  buiding cost
• Contigencies 3 overall
• Supervision charges 8 overall
• Design charges 2 overall

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EXAMPLE 3

• Prepare a Rough-cost Estimate based on unit
  costs of per unit plinth area basis of a four
  storeyed office building having a carpet area of
  2000 sq.m. for obtaining the administrative
  approval of the Government. It may be assumed
  that 30 of the built up area will be taken by
  the corridors, verandas, lavatories, staircase,
  etc. and 10 of built up area will be occupied
  by walls. The following data is given
• Plinth Area Rate Rs 1100.00 / sq. ft.
• Extra for special architectural treatment
  0.5 of the building cost.
• Extra for water supply and sanitary installations
  6 of the building cost.

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• Extra for internal installations 14 of the
  building cost
• Extra for electric services 12.5 of
  building cost
• Extra for sui gas services 6 of building
  cost
• Extra due to deep foundations at site 1.0 of
  building cost
• Contingencies 2.5 overall
• Supervision charges 8 overall
• Design charges 2.5 overall 
• Hint Let Building Area X
• Building Area Carpet Area Wall Area
  Corridores, Stair-case, Lavatories, Lobby, etc
• X 2000 (0.01 X) (0.03 X)
  in sq. m.

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Example 4

• Prepare a Rough-cost Estimate for obtaining the
  administrative approval of the Government for a
  hospital project to serve both indoor and outdoor
  patients in an important rural area. The hospital
  will consist of the following
• Main administrative office with dispensing
  operations, etc.
• Two general wards, each of 20 general beds.
• Superintendent Doctors Residence.
• Two Assistant Doctors Residences.
• Eight single Nurses Quarters.
• Four Compounders Quarters.
• Twelve lower staffs Quarters.

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• Provision for electrical, sui gas, water supply,
  sewerage installations, and for external roads,
  water supply, sanitary, electrification, storm
  water drains, fencing, arboriculture, etc. shall
  have to be made.
• Assuming suitable plinth area of the building,
  plinth area rate, and other rates including
  design, supervision, contingencies, landscaping,
  arboriculture, and development charges, work out
  the total estimated cost of the hospital based on
  unit costs of per unit plinth area basis.

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DETAILED ESTIMATE

• Detailed estimates are prepared by carefully and
  separately calculating in detail the costs of
  various items of the work that constitute the
  whole project from the detailed working drawings
  after the design has been finalized.
• The mistakes, if any, in the rough cost estimate
  are eliminated in the detailed estimate.
• Detailed estimates are submitted to the competent
  authorities for obtaining technical sanction.

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DETAILED ESTIMATE

• The whole project is sub-divided into different
  items of work or activities. The quantity for
  each item is then calculated separately from the
  drawings as accurately as possible. The procedure
  is known as "taking out of quantities".
• The quantities for each item may be estimated and
  shown in the pattern which is called "Bill of
  quantities."
• The unit, in which each item of the wok is to be
  calculated, should be according to the prevailing
  practice as followed in various departments of
  the country.

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BILL OF QUANTITIES
Sr. No Description of item No Measurements Measurements Measurements Quantity Total Quantity Remarks
Sr. No Description of item No Length Breadth Height Quantity Total Quantity Remarks

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PRICED BILL OF QUANTITIES
Sr. No. Description of Item Unit Quantity Rate Cost Remarks

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DETAILED ESTIMATE

• Each item of the work is then multiplied by its
  estimated current rate calculated by a fixed
  procedure to find out cost of the item.
• At the end, a total of all items of the work are
  made to get the total estimated cost.
• The rates are usually as per Schedule of Rates
  for the locality plus a premium to allow for rise
  in labor and material rates over and above the
  schedule of rates.
• A percentage, usually 5 is also provided on the
  total estimated cost for the work to allow for
  the possible contingencies due to unforeseen
  items or expenditure or other causes, besides 2
  establishment charges.

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DETAILED ESTIMATE

• Besides drawings and details of measurements and
  calculation of quantities (Bill of Quantities),
  the following documents are also usually
  submitted with the detailed estimate for
  obtaining Technical Sanction
• A report explaining History, necessity, scope and
  main features of the project, its design, and
  estimate, etc.
• 2. Specifications lying down the nature and
  class of work and material to be used in various
  parts of the work.
• 3. The abstract of cost (priced Bill of
  Quantities) showing the total quantities under
  each sub-head, rate per unit of measurement, and
  cost.
• 4. Calculation sheets showing calculations for
  important parts of the structure. In fact, in
  estimating the art and skill lies only in the
  computation of details without any omissions, of
  all parts of the building or work.

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CLASSIFICATION DEPENDING UPON
PURPOSE OF DETAILED ESTIMATE

• 1- CONTRACTOR ESTIMATEIt is made by the
  contractor for determining the price or prices to
  be bid. It is usually a carefully prepared
  detailed estimate.
• 2- ENGINEERS ESTIMATE
• This type of estimate is made by the Engineer
  (Consultant) usually for the purposes of
  financing the work and for checking bids and
  running bills submitted by contractors.

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3- PROGRESS ESTIMATES

• These are made by the Engineer at regular
  intervals for the completed parts of the project
  during the progress of the work for determining
  the amounts of partial payments to be made to the
  contractor.
• On large contracts, such estimates are commonly
  made each month and, hence, are frequently called
  monthly estimates.

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UNFORESEEN ITEMS IN DETAILED ESTIMATE

• While preparing a detailed estimate, one had to
  be very careful to see that all items of the work
  are incorporated.
• It is likely that a few Items, though unimportant
  in nature, might have been overlooked and which
  may result in raising the estimate of the
  project.
• There may be also certain unforeseen
  circumstances affecting the project.
• Hence, a certain allowance usually 5 to 10 of
  the total cost, is made in the estimation which
  will take care of all these items that are
  unforeseen or are overlooked and are known as
  "Contingencies".

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METHODS OF DETAILED ESTIMATE

• The dimensions, length, breadth and height or
  depth are to be taken out from the working
  drawings (plan, elevation and section).
• Junctions of walls, corners and the meeting
  points of walls require special attention.
• For symmetrical footings, which is the usual
  case, earthwork in excavation in foundations,
  foundation concrete, brickwork in foundation and
  plinth, and brickwork in superstructure may be
  estimated by either of the two methods
• (1) SEPARATE OR INDIVIDUAL WALL METHOD
• (2) CENTER LINE METHOD

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SEPARATE OR INDIVIDUAL WALLS METHOD

• The walls running in one direction are termed as
  "long walls and the walls running in the
  transverse direction, as "Short waLls", without
  keeping in mind which wall is lesser in length
  and which wall is greater in length.
• Lengths of long walls are measured or found
  "Out-to out" and those of short walls as
  "In-to-in".
• Different quantities are calculated by
  multiplying the length by the breadth and the
  height of the wall.
• The same rule applies to the excavation in
  foundation, to concrete bed in foundation,
  D.P.C., masonry in foundation and super structure
  etc.

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SEPARATE OR INDIVIDUAL WALLS METHOD

• For symmetrical footing on either side, the
  center line remains same for super structure,
  foundation and plinth. So, the simple method is
  to find out the centre-to-centre lengths of long
  walls and short walls from the plan.
• Long wall length out-to-out
• Center to center length half breadth on one
  Side half breadth on other side.
• Center to center length one breadth
• Short wall length in-to-in Center to Center
  length - one breadth.

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SEPARATE OR INDIVIDUAL WALLS METHOD

• This method can also be worked out in a quicker
  way., as follows
• For long walls
• First of all, find the length of the foundation
  trench of the long wall out-to-out in the same
  manner as explained above.
• The length of the foundation concrete is the
  same.
• For the length of the first footing or first step
  of the brick wall, subtract two offsets
  (2x6"12") in foundation concrete from the length
  of the trench or concrete.
• For the second footing subtract from the length
  of the 1st footing two offsets (2x2.25" 4.5"),
  for 3rd footing subtract from the length of the
  2nd footing 2 offsets (4.5") and in this way
  deal with the long walls up to the
  super-structure.
• For short walls
• Follow he same method but instead of subtracting
  add two offsets to get the corresponding lengths
  in-to-in.

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CENTRE LINE METHOD

• In this method, total length of centre lines of
  walls, long and short, has to be found out.
• Find the total length of centre lines of walls of
  same type, having same type of foundations and
  footings and then find the quantities by
  multiplying the total centre length by the
  respective breadth and the height.
• In this method, the length will remain the same
  for excavation in foundations, for concrete in
  foundations, for all footings, and for
  superstructure (with slight difference when there
  are cross walls or number of junctions).
• This method is quicker but requires special
  attention and considerations at the junctions,
  meeting points of partition or cross walls.

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CENTRE LINE METHOD

• For rectangular, circular polygonal (hexagonal,
  octagonal etc) buildings having no inter or cross
  walls, this method is quite simple.
• For buildings having cross or partition walls,
  for every junction, half breadth of the
  respective item or footing is to be deducted from
  the total centre length.
• Thus in the case of a building with one partition
  wall or cross wall having two junctions, deduct
  one breadth of the respective item of work from
  the total centre length.

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CENTRE LINE METHOD

• For buildings having different types of walls,
  each set of walls shall have to be dealt
  separately.
• Find the total centre length of all walls of one
  type and proceed in the same manner as described
  above. Similarly find the total centre length of
  walls of second type and deal this separately,
  and so on.
• Suppose the outer walls (main walls) are of A
  type and inner cross walls are of B type.
• Then all A type walls shall be taken jointly
  first, and then all B type walls shall be taken
  together separately.
• In such cases, no deduction of any kind need be
  made for A type walls, but when B type walls are
  taken, for each junction deduction of half
  breadth of A type walls (main Walls) shall have
  to be made from the total centre length of B type
  walls.

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CENTRE LINE METHOD

• At corners of the building where two walls are
  meeting, no subtraction or addition is required.
• In the figure, the double cross-hatched areas
  marked P,Q,R, S come twice, while blank areas,
  A,B,C, D do not come at all, but these portions
  being equal in magnitude, we get the correct
  quantity.

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DESCRIPTION AND UNITS OF MEASUREMENT FOR COMMON
ITEMS
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1 SITE CLEARANCE WORKS

• This item is described in detail but the price of
  this item is usually indicated as lump sum (LS).
• The cost of this item is provided in the estimate
  by judgment, according to the description of the
  item and is indicated as Lump sum (L.S).

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2 EXCAVATION FOR FOUNDATION TRENCHES

• Earthwork in excavation for foundation trenches
  is calculated by taking the dimensions of each
  trench as length X breadth X depth.
• It is measured in cubic ft, cubic yard or cubic
  meter, according to the prevailing practice.
• The payment for this item is generally done as
  Rs. per hundred cubic ft.

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FILLING IN TRENCHES

• Filling in trenches after the construction of
  foundation masonry is ordinary neglected. If the
  trench filling is, also taken in account, it may
  be calculated by deducing the volume of masonry
  in trenches from that of the volume of
  excavation.

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3 FOUNDATION CONCRETE (P.C.C.)

• The type of concrete must be clearly mentioned.
  The mix proportions and the type of cement, sand
  and coarse aggregate must be specified.
• This item is measured in cubic ft and the unit
  for measurement is, generally Rs. per 100 cubic
  ft.
• When the soil is soft or weak, one layer of dry
  bricks or stone soling is applied below the
  foundation concrete. The soling layer is computed
  in sq.ft (length X breadth), specifying the
  thickness in description of item.

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4 BRICKWORK IN FOUNDATION UP TO PLINTH

• Care must be taken, while taking dimensions from
  the drawings in the bill of quantities because
  the walls in this part of the structure are in
  the form of steps with changing dimensions.
• This item is calculated in cft and the unit for
  payment is Rs. per 100 cft.
• In the description of work, the quality of bricks
  and mortar ratio must be specified. For example,
• "Brickwork in foundation and plinth using first
  class bricks laid in (14) or (16) cement-sand
  (c/s) mortar

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5 BRICKWORK IN SUPER STRUCTURE

• Important considerations are
• a Measurements of walls shall be taken in the
  same order and in the same manner as for
  brickwork in foundations and plinth.
• b In the first measurements, all openings
  such as doors, windows, veranda openings etc.
  shall be neglected. However, deductions shall be
  made for all openings in the walls, at the end of
  the item.

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BRICKWORK IN SUPER STRUCTURE (ctd)

• c In the description of the work, the
  quality of bricks and mortar ratio have to be
  specified.
• d Masonry for arches shall be paid separately,
  at a different rate.
• e The height of super structure is very
  important. Generally the quantities are worked
  out for each storey separately and rates would
  be different for different storeis because of
  additional labor work, scaffolding and
  shuttering.
• f The item is worked out in cft and the
  standard unit for payment is Rs. Per 100 cft.

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6 DAMP PROOF COURSE (D.P.C.)

• Horizontal D.P.C. shall extend the full width of
  the super structure walls, however, it shall not
  be provided across doorways and veranda openings.
  It is also provided in roof and floors.
• Vertical D.P.C. is provided in external walls,
  especially, in the walls of basements.
• The quantity of D.P.C. is estimated in square
  ft.(on area basis) and standard unit for payment
  is Rs. per 100 sft.

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7 ROOFING RCC WORKS

• Area of the Roof slab is calculated by taking
  inside dimensions of the room plus a bearing of
  the roof slab on the walls, on all sides.
• For R.C.C. Roof slabs and beams, the total
  quantities of concrete and steel are estimated,
  separately.
• The quantity of plain concrete is estimated in
  cft and the standard unit for payment of concrete
  is Rs. per 100 cft.
• Volume of Reinforcing Steel is not deducted ,
  while estimating the volume of plain concrete
  for payment.
• c R.C.C. lintels over wall openings such as
  doors and windows are also included in R.C.C.
  work.

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ROOFING RCC WORKS (ctd)

• Roof consisting of beams, battens, and tiles or
  wooden planks is estimated for each part,
  separately.
• Steel beam is estimated by weight, whereas,
  wooden beam is measured in cft. Battens are
  estimated by numbers indicating there size and
  lengths. Tiles are also estimated by size and
  numbers.
• Roof finishing may consist of bitumen coating
  and/or Polythene sheets (water proofing) , earth
  filling (heat proofing) and brick tiles, etc.
• Dimensions are taken from inner face to inner
  face of parapet walls.
• This item is estimated in sft and a composite
  rate for payment is taken as Rs. per 100 sft of
  the roof area.

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8 REINFORCEMENT STEEL / GENERAL STEEL WORK

• Steel is provided separately from R.C.C. per ton,
  per Kg, or per cwt (standard weight also called
  Quintal or century weight equal to 112 Ibs
  50Kg).
• Quantity of steel can either be worked out by
  rules of thumb practice or by intensive
  calculations taking the length and diameter of
  steel bars from the working drawings showing
  reinforcement details and bar-bending schedules.
  In taking length of bars, due margin of hooks,
  bends and overlapping is given

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REINFORCEMENT STEEL / GENERAL STEEL WORK (-ctd-)

• As a Rule Of Thumb Practice,
• for ordinary beams and slabs for residences,
  assume 6.75 Ibs of steel per cft of R.C.C. work.
  However, for R.C.C. columns, it varies from 8 to
  10 Ibs per cft., because normally, we use 2 of
  steel in columns.
• Percentage of steel means, area of steel divided
  by total area of the column multiplied by 100 and
  1 of steel in columns corresponds to a quantity
  of 4.5 Ibs/cft.

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9 FLOORS

• Cement concrete floors. Mosaic floors, and brick
  floors are most commonly used.
• Payments are made separately for different
  layers, like, topping, lean concrete, sand
  filling, earth filling, etc.
• Earth filling, sand filling and lean concrete
  are paid by volume, whereas, topping is paid on
  area basis, mentioning thickness in the
  description.
• Standard unit for payment of topping is, usually,
  Rs. per 100 sft.
• The skirting is estimated in running ft.

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10 PLASTERING

• The type of plaster, proportioning of materials
  and minimum thickness of plaster have to be
  specified.
• The quantity is calculated for total wall surface
  without deduction for openings such as doors
  windows, ventilators, etc. However, if the wall
  is being plastered on both the faces, the
  deductions for opening areas are made from one
  side only.
• Standard unit for payment is Rs. per 100 sft.
• Height is also specified for plastering because,
  for greater heights, labor cost increases. The
  rate varies according to the number of the storey

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11 WOODWORK/CARPENTRY

• The type of material used and the quantity of
  finish required should be clearly indicated in
  the description of the item.
• The rate for any type of woodwork includes
  cutting of timber to required sizes, joinery
  work, fittings and fastenings, three coats of oil
  paints or varnish, bolts, locks, handles, etc.
• The measurements are taken for the overall area
  of doors, windows, etc. If volume of timber
  required for these items is to be finding out,
  the computed area is multiplied with the nominal
  thickness and an allowance of 25 is made for
  wastage of timber.

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WOODWORK/CARPENTRY (-ctd-)

• Rectangular wooden beams, vertical columns,
  trusses, etc., are measured in cft.
• Wooden stairs are measured in number of steps and
  description of the item includes the riser,
  tread, and width of the steps.
• Wooden shelves are measured in running ft (RFT).

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12 PLUMBING WORK/SANITARY FITTINGS

• For water supply and drainage works in a
  building, the pipe lines and sewer lines are
  measured in RFT, while other items are measured
  in numbers.
• These items include wash hand basins (W.H.B.),
  kitchen basins (which may be of glazed ceramic,
  mosaic, or stainless steel), water closets (W.C.,
  which may be of European type, or local type),
  flushing tanks (also known as flushing
  cisterns), shower rose, and all type of water
  tapes.

62
PLUMBING WORK/SANITARY FITTINGS (-ctd-)

• Within sewer lines, man holes or inspection
  chambers are to be provided at every corner and
  also at a distance, not exceeding every 50 ft
  inside the house and every 100 ft outside the
  house.
• The size of man hole may be 2.5ft X 2,5ft for low
  depths and 3ft X 3ft, 4ft X 4ft or 5ft X 5ft for
  deep depths.
• Drainage pipe lines outside the covered area but
  inside the boundary wall are, usually, of R.C.C.
  with minimum diameter 4 in, however, these are
  available in different sizes.
• Inside the building, drainage pipe is, usually,
  of C.I. with minimum diameter 3 in.
• Water supply pipes are, usually, G.I. pipes.,
  estimated in RFT in different dias.
• Other accessories, like sockets, elbows, tees,
  reducers, unions, etc., are estimated in numbers.

63
13 ELECTRIC FITTINGS

• All the accessories used in electric fittings are
  described in detail and payment is done in
  numbers or RFT.
• All wires and pipes are taken in RFT while other
  items are taken in Nos.

64
SOME COMMON RELATIONS USED IN BUILDING ESTIMATES
65

• 1- MORTARS
• Cement-Sand Mortars
• 120 cft dry yields 100 cft wet
• (b) Lime-Sand Mortars
• 113 cft dry yields 100 cft wet
• (C) Cement-Lime-Sand Mortars
• 112 cft dry yields 100 cft wet
• (d) Dry mortar required for 100 sft of ½ thick
  cement plaster 6 cft

66
2- CEMENT CONCRETE 154 cft dry yields
100 cft wet 3- BRICKWORK (a) 100 cft Brick
masonary Bricks ------------1350 Dry
Mortar ------- 30 cft Wet Mortar ------- 25
cft (b) 100 sft surface area using bricks on
bed Bricks --------------360 Mortar
------------- 9 cft (b) 100 sft surface area
using bricks on edge Bricks
--------------540 Mortar ------------- 13
cft
67
4- POINTING PER 1000 SFT AREA
Ingredient 11 12 13
Cement 8 cft 5 cft 3.8 cft
Sand 8 cft 10 cft 11.4 cft
5- EARTHWORK Output of labor assuming one man
working 8 hours per day with lift up to 5 ft or
less
TYPE OF SOIL EXCAVATION PER DAY
Medium Soil 75 100 cft
Hard / Stiff Soil 50 75 cft
Rocky Soil 25 30 cft
68
6- BITUMEN
Bitumen for 100 sft of DPC (first coat) 15 Kg
Bitumen for 100 sft of DPC (second coat) 10 Kg
7- CEMENT 1 Bag ------------- 50 Kg
(Weight), 1.25 cft (Volume) 8- SPECIFIC
WEIGHTS RCC --------------- 150 lbs /
cft PCC --------------- 145 lbs /
cft Aggregate ------- 166 lbs / cft
69
9- TIMBER
Timber for 100 sft of Panelled Doors and Windows 13 cft
Timber for 100 sft of Glazed windows and Ventilators 8 cft
10- WHITE WASH

Lime for 100 sft of white wash (one coat) 1.00 Kg
70
ESTIMATION OF A SIMPLE BUILDING
71
PLAN
72
FOUNDATIONS
73
SPECIFICATIONS

• Clear height of rooms 12
• Clear height of Verandah 10-0
• Plinth level 1-6
• Thickness of roof slab 4
• Thickness of RCC shade 3
• Depth of RCC Beams in Verandah 1-6 below
  verandah slab
• Parapet wall 1-0 (Clear height above roof
  tiles)
• Ventilators (4 No.) 2-6 x 1-6
• RCC lintel 6 in depth
• Damp proof coarse 1 ½thick PCC (124) 2
  coats of hot bitumen polythene sheet
• Full foundation up to plinth level along verandah
  periphery is provided
• Internal finishes Three coats of white
  wash/distemper paint
• External finishes Three coats of Weather shield
  paint

74
Center to Center Lengths

• L1 (10-0) (12-0) (0-4 ½) (0-4 ½)
  (0-4 ½) 23-1 ½
• S1 S2 (12-0) (0-4 ½) (0-4 ½)
  12-9
• S3 (8-0) (0-4 ½) - (0-4 ½) 8-0

75
BILL OF QUANTITIES1- CIVIL WORKS
S. No Description of item No Measurement Measurement Measurement Quantity Total Quantity Remarks
S. No Description of item No Length Breadth Depth Quantity Total Quantity Remarks
1 Earthwork for excavation in foundation trenches
L1 3 25-7 ½ // 2-6 3-6 224.22 cft 672.66 cft L 23-1 ½2-6 25-7 ½
S1 2 10-3 2-6 3-6 89.69 cft 179 .38 cft L 12-9-(2-6) 10-3
S2 1 10-3 2-1 ½ 3-6 76.23 cft 76.23 cft L 12-9-(2-6) 10-3
S3 2 5-6 2-6 3-6 48.13 cft 96.25 cft L 8-0-(2-6) 5-6
Total 1024.52 cft
76
2 Earth work in filing under floors
Room No.1 1 12-0 12-0 0-6 ½ 78.00 cft 78.00 cft D 1-6-(0-11 ½) 6 1/2
Room No.2 1 10-0 12-0 0-6 ½ 65.00 cft 65.00 cft
Veranda 1 22-4 ½ 7-3 0-6 ½ 87.87 cft 87.87 cft L 10-0(0-4½)(12-0) 22-4 ½ B 8-0-(0-9) 7-3
Total 230.87 cft

3 P.C.C (148) in foundation using crushed or broken stones Length Breadth same as for Foundation trenches (Item No. 1)
L1 3 25-7 ½ 2-6 0-6 32.00 cft 96.00 cft
S1 2 10-3 2-6 0-6 12.81 cft 25.63 cft
S2 1 10-3 2-1 ½ 0-6 10.89 cft 10.89 cft
S3 2 5-6 2-6 0-6 6.87 cft 13.75 cft
Total 146.27 cft
77
4 Burnt brick work in foundation and plinth using first class bricks in (16) cements sand mortar.
(a) L1
1st step 3 24-7 ½ 1-6 0-6 18.47 cft 55.40 cft L 23-1½(1-6) 24-7½
2nd step 3 24-3 1-1 ½ 0-6 13.64 cft 40.92 cft L 23-1½(1-1½) 24-3
3rd step up to plinth level 3 23-10 ½ 0-9 3-4 ½ 60.43 cft 181.30 cft L 23-1½(0-9) 23-10½ D 2-0 (1-6) (0-1 ½) 3-4 ½
Total 277.62 cft

(b) S1
1st step 2 11-3 1-6 0-6 8.44 cft 16.88 cft L 12-9-(1-6) 11-3
2nd step 2 11-7 ½ 1-1 ½ 0-6 6.54 cft 13.08 cft L 12-9-( 1-1½) 11-7½
3rd step up to plinth level 2 12-0 0-9 3-4 ½ 30.37 cft 60.75 cft L 12-9-( 0-9) 12-0
Total 90.71 cft
78
(c) S2
1st step 1 11-3 1-1 ½ 0-6 6.33 cft 6.33 cft L 12-9-(1-6 ) 11-3
2nd step 1 11-7 ½ 0-9 0-6 4.36 cft 4.36 cft L 12-9-( 1-1½) 11-7½
3rd step up to plinth level 1 12-0 0-4 ½ 3-4 ½ 15.19 cft 15.19 cft L 12-9-( 0-9) 12-0
Total 25.88 cft
(d)S3
1st step 2 6-6 1-6 0-6 4.87 cft 9.75 cft L 8-0-(16) 6-6
2nd step 2 6-10 ½ 1-1 ½ 0-6 3.86 cft 7.73 cft L 8-0-(1-1½) 6-10½
3rd step up to plinth level 2 7-3 0-9 3-4 ½ 18.35 cft 36.70 cft L 8-0-(0-9) 7-3
Total 54.18 cft
(e) steps in front of verandah
1st step 1 23-10 ½ 2-0 0-6 23.88 cft 23.88 cft L 23-1½(0-4½) (0-4½) 23-10½
2nd step 1 23-10 ½ 1-0 0-6 11.94 cft 11.94 cft
Total 35.82 cft
G.Total 484.21 cft
79
5 1-1/2 thick P.C.C (124) in DPC including two coats of hot bitumen 2 layers of Polythene sheet Length Breadth same as for plinth wall
L1 2 23-10 ½ 0-9 - 17.9 sft 35.81 sft
S1 2 12-0 0-9 - 9.00 sft 18.00 sft
S2 1 12-0 0-4 ½ - 4.5 sft 4.50 sft
Verandah columns 3 0-9 0-9 - 0.56 sft 1.69 sft
Total 60.00 sft
Deduction of Door sills 1 4-0 0-9 - 3.00 sft 3.00 sft
1 4-0 0-4 ½ - 1.50 sft 1.50sft
Total 4.50 sft
Net Total 55.50 sft
80
6 Brick work in super structure using first class bricks in (14) cement sand mortar Length Breadth same as for plinth wall
L1 2 23-10 ½ 0-9 13-10 ½ 248.45 cft 496.90 cft H 12-0 (Room height) 0-4 ( Slab) 0-4 (Earth filling) 0-1(Mud plaster) 0-1½ (Tiles) 1-0 (P. wall) 13-10½
S1 2 12-0 0-9 13-10 ½ 124.87 cft 249.75 cft
S2 1 12-0 0-4½ 12-0 54.00 cft 54.00 cft No Parapet Walls
Verandah columns 3 0-9 0-9 8-6 4.78 cft 14.34 cft H10-0- (1-6)8-6
Verandah parapet walls
(i) L1 1 23-10 ½ 0-9 1-6 ½ 27.60 cft 27.60 cft H 0-4 (Earth filling) 0-1 (Mud plaster) 0-1½ (Tiles) 1-0 (P. walls) 1-6½
(ii) S3 2 7-3 0-9 1-6 ½ 8.38 cft 16.76 cft
Total 859.35 cft
81
Deduction
Doors 1 4-0 0-9 7-0 21.00 cft 21.00 cft
1 4-0 0-4 ½ 7-0 10.5 cft 10.50 cft
Windows 3 4-0 0-9 4-0 12.00 cft 36.0 cft
Ventilators 4 2-6 0-9 1--6 2.81 cft 11.25 cft
Shelves 2 4-0 0-6 5-0 10.00 cft 20.00 cft
RCC lintels over
(i)doors 1 5-0 0-9 0-6 1.87 cft 1.87 cft
1 5-0 0-4 ½ 0-6 0.93 cft 0.93 cft
(ii)Windows 3 5-0 0-9 0-6 1.87 cft 5.62 cft
(iii)Ventilators 4 3-6 0-9 0-6 1.31 cft 5.25 cft
(iv)Shelves 2 5-0 0-9 0-6 1.87 cft 3.75 cft
Total 116.18 cft
Net Total 743.17 cft
82
7 Reinforced cement concrete (124) as in roof slab, lintels, columns, beams etc., (reinforcement will be measured separately) There is 4½ bearing of both slabs on all walls
Roof slab of rooms 1 23-1 ½ 12-9 0-4 98.28 cft 98.28 cft L 10-0 12-0 0-4½ 0-9 (2 bearings) 23-1½
B 12-0 0-4½(bearing) 0-4½(bearing) 12-9
Roof slab of Verandah 1 23-10 ½ 8-4 ½ 0-4 66.65 cft 66.65 cft B 8-0 0-4½ (bearing) 8-4½
Verandah beam
Long beam 1 23-1 0½ 0-9 1-6 26.86 cft 26.86 cft
Short beam 2 7-7 ½ 0-9 1-6 8.59 cft 17.18 cft L8-0-(0-9) (0-4½) 7-7½
83
Lintels
Doors 1 5-0 0-9 0-6 1.87 cft 1.87 cft
1 5-0 0-4½ 0-6 0.93 cft 0.93 cft
Windows 3 5-0 0-9 0-6 1.87 cft 5.62 cft
Ventilators 4 3-6 0-9 0-6 1.31 cft 5.25 cft
Shelves 2 5-0 0-9 0-6 1.87 cft 3.75 cft
Shades 2 5-0 1-6 0-3 1.87 cft 3.75 cft
Total 226.39 cft
84
8 Mild steel round bars as reinforcement including cutting, bending, binding and placing reinforcement in position 6.75 lbs/cft steel of 226.39 cft concrete 1528.13 lbs
Total 1529.00 lbs
9 Roof insulation comprising of 2 coats of hot bitumen, 4 thick earth filling, 1 thick mud plaster and 1-1/2 thick brick tiles jointed and pointed in cement sand mortar (13)
Rooms (1 2) 1 22-4 ½ 12-0 - 268.50 sft 268.5 sft L 10-0 (12-0) (0-4½) 22- 4-½
Verandah 1 22-4 ½ 7-3 - 162.22 cft 162.22 cft B 8- 0- (0-9) 7-3
Total 430.72 sft
85
10 Sand under floors
Room No.1 1 10-0 12-0 0-6 60.00 cft 60.00 cft
Room No.2 1 12-0 12-0 0-6 72.00 cft 72.00 cft
Verandah 1 22-4½ 7-3 0-6 81.11 cft 81.11 cft
Total 213.11 cft
11 Cement concrete (148) as under layer of floors
Room No.1 1 10-0 12-0 0-4 40.00 cft 40.00 cft
Room No.2 1 12-0 12-0 0-4 48.00 cft 48.00 cft
Verandah 1 22-4 ½ 7-3 0-4 54.07 cft 54.07 cft
Total 142.07 cft
86
12 1-1/2 thick cement concrete (124) as top layer of floor, finished smooth
Room No.1 1 10-0 12-0 - 120.00 sft 120.00 sft
Room No.2 1 12-0 12-0 - 144.00 sft 144.00 sft
Verandah 1 23-10 ½ 8-0 - 191.00 sft 191.00 sft L 10-0 (12-0) (0-4 ½ ) (0-9) (0-9) 23-10 ½
Door sill 1 1 4-0 0-9 - 3.00 sft 3.00 sft
Door sill 1 1 4-0 0-4 ½ - 1.50sft 1.50sft
Total 459.5 sft
Deduction
Columns 3 0-9 0-9 - 0.56 sft 1.68sft
Net Total 457.80 sft
87
13 ½ thick (13) cement sand plaster to walls finished smooth
Inner side
Room No.1 (Long wall) 2 12-0 - 12-0 144.00 sft 288.00 sft
Room No.1(Short wall) 2 10-0 - 12-0 120.00 sft 240.00 sft
Room No.1 (Ceiling) 1 10-0 - 12-0 120.00 sft 120.00 sft
Room No.2 (Long wall) 2 12-0 - 12-0 144.00 sft 288.00 sft
Room No.2(Short wall) 2 12-0 - 12-0 144.00 sft 288.00 sft
Room No.2 (Ceiling) 1 12-0 - 12-0 144.00 sft 144.00 sft
Verandah wall 1 23-10 ½ - 10-0 238.75 sft 238.75 sft L (10-0) (12-0) (0-4½ ) (0-9) (0-9) 23-10 ½
Verandah ceiling 1 22-4 ½ - 7 3 162.26 sft 162.26 sft L (10-0)(12-0) (0-4 ½ ) 22-½
Columns 3 3-0 - 8-6 25.50 sft 76.5 sft L (0-9) (0-9) (0-9) (0-9) 3-0
Long beam (internal side) 1 22-4 ½ - 1-6 33.55 sft 33.55 sft
Long beam (soffit) 2 10-9 ¾ - 0-9 8.10 sft 16.21 sft L(22-4 ½)-(0-9)/2 10-9¾
Short beam (internal sides) 2 7-3 - 1-6 10.87 sft 21.74 sft L(8-0)-(0-9) 7-3
Short beam (soffit) 2 7-3 - 0-9 5.43 sft 10.87 sft
88
Door jambs 2 0-9 - 7-0 5.25 sft 10.50 sft
2 0-4½ - 7-0 2.63 sft 5.25 sft
1 0-9 - 4-0 3.0 sft 1.50 sft
1 0-4½ - 4-0 1.50 sft 3.00 sft
Window jambs 6 0-9 - 4-0 3.00 sft 18.00 sft
6 0-9 - 4-0 3.00 sft 18.00 sft
Ventilator jambs 8 0-9 - 2-6 1.88 sft 15.00 sft
8 0-9 - 1-6 1.19 sft 9.00 sft
Shelves 4 0-6 - 5-0 2.5 sft 10.00 sft
4 0-6 - 4-0 2.0 sft 8.00 sft
Outer side
Rear wall (From 6 below G.L. to Parapet walls) 1 23-10 ½ - 15-10½ 379.00 sft 379.00 sft H (0-6) (1-6) (12-0) (0-4) (0-4) (0-1) (0-1½) (1-0) 15-10½
Left Right side wall 2 13-6 - 15-10½ 214.32 sft 428.64 sft L (12-0) (0-9) (0-9) 13-6
Front side (above verandah roof) 1 23-10 ½ - 3-0 71.63 sft 71.63 sft H (12-0) 0-10½) (1-0) - (10-10 ½ ) 3-0
Left Right side plinth of verandah 2 8-0 - 2-0 16.00 sft 32.00 sft H (1 6) (0 6) 2 0
89
Parapet wall
Inner side of rooms 2 22-4 ½ - 1-0 22.37 sft 44.70 sft L (10-0)(12-0)(0-4 ½ ) 22-4 ½
2 12-0 - 1-0 12.00 sft 24.00 sft
Inner side of Verandah 1 22-4 ½ - 1-0 22.37 sft 22.37 sft
2 7-3 - 1-0 7.25 sft 14.50 sft
Outer side of Verandah 1 23-10 ½ - 3- 4 ½ 67.66sft 67.66 sft H (1-6)(0-4)(0-6 ½) (1-0 ) 3-4 1/2//
2 8-0 - 2-10 22.67 sft 45.33 sft
Top of parapet wall (Rooms) 2 23-10 ½ - 0-9 17.9 sft 35.80 sft
2 12-0 - 0-9 9.00 sft 18.00 sft
Top of parapet wall (Verandah) 1 23-10 ½ - 0-9 17.90 sft 17.90 sft
2 7-3 - 0-9 5.43 sft 10.87 sft
90
Steps
Tread 2 23-10 ½ - 1-0 23.87 sft 47.74 sft
Riser 3 23-10 ½ - 0-6 11.93 sft 35.80 sft
Sides 2 2 00 0-6 1.00 sft 2.00 sft
2 1 00 0-6 0.5 sft 1.00 sft
Total 3316.07 sft
Deduction
Doors 2 4-0 - 7-0 28.00 sft 56.00 sft
Windows 3 4-0 - 4-0 16.00 sft 48.00 sft
Ventilators 4 2-6 - 1-6 3.75 sft 15.00 sft
Total 119.00 sft
Net Total 3197.07 sft
91
14 Wood work as in
(i) 1 ½ thick wooden doors with chowkat,. 2 4-0 - 7-0 28.00 sft 56.00 sft
Total 56.00 sft
(ii) Glazed and gauzed windows and ventilators. 3 4-0 - 4-0 16.00 sft 48.00 sft
4 2-6 - 1-6 3.75 sft 15.00 sft
Total 63.00 sft
G.Total 119.00 sft
15 Three coats of painting to doors , windows and ventilators - - - - - .(2 x Qty of item No.14) 238.0 sft
Total 238.00 sft
92
16 Three coats of distempering/ white washing to walls (Internal Side)
Room No.1 (Long wall) 2 12-0 - 12-0 144.00 sft 288.00 sft
Room No.1 (Short wall) 2 10-0 - 12-0 120.00 sft 240.00 sft
Room No.1 (Ceiling) 1 10-0 - 12-0 120.00 sft 120.00 sft
Room No.2 (Long wall) 2 12-0 - 12-0 144.00 sft 288.00 sft
Room No.2 (Short wall) 2 12-0 - 12-0 144.00 sft 288.00 sft
Room No.2 (Ceiling) 1 12-0 - 12-0 144.00 sft 144.00 sft
Verandah wall 1 23-10 ½ - 10-0 238.75 sft 238.75 sft
Verandah Ceiling 1 22-4 ½ - 7 3 162.26 sft 162.26 sft
Columns 3 3-0 - 8-6 25.50 sft 76.50 sft
Long beam (sides) 1 22-4 ½ - 1-6 33.55 sft 33.55 sft
Long beam (soffit) 2 10-9 ¾ - 0-9 8.10 sft 16.21 sft L (22-4 ½)-(0-9)/2 10-9¾
Short beam (sides) 2 7-3 - 1-6 10.87 sft 21.74 sft
Short beam (soffit) 2 7-3 - 0-9 5.43 sft 10.87 sft
93
Door jambs 2 0-9 - 7-0 5.25 sft 10.50 sft
2 0-4½ - 7-0 2.63 sft 5.25 sft
1 0-9 - 4-0 3.0 sft 1.50 sft
1 0-4½ - 4-0 1.50 sft 3.00 sft
Window jambs 6 0-9 - 4-0 3.00 sft 18.00 sft
6 0-9 - 4-0 3.00 sft 18.00 sft
Ventilator jambs 8 0-9 - 2-6 1.88 sft 15.00 sft
8 0-9 - 1-6 1.19 sft 9.00 sft
Shelves 4 0-6 - 5-0 2.5 sft 10.00 sft
4 0-6 - 4-0 2.0 sft 10.00 sft
Total 2017.16 sft
Deduction
Doors 4 4-0 - 7-0 28.00 sft 112.00 sft
Windows 4 4-0 - 4-0 16.00 sft 64.00 sft
Ventilators 6 2-6 - 1-6 3.75 sft 22.50 sft
Total 142.5 sft
Net Total 1874.66 sft
94
17 Three coats of Weather shield paint to walls. (External side)
Rear wall 1 23-10 ½ - 15-4½ 367.07 sft 367.07 sft H (15-10 ½)-(0-6) 15-4 1/2
Left Right side wall 2 13-6 - 15-4½ 207.5 sft 415.13 sft
Front side (above verandah roof) 1 23-10½ - 3-0 71.63 sft 71.63 sft
Left Right side wall of verandah 2 8-0 - 2-0 16.00 sft 32.00 sft
Parapet wall
Inner side of rooms 2 22-4 ½ - 1-0 22.37 sft 44.70 sft
2 12-0 - 1-0 12.00 sft 24.00 sft
Inner side of Verandah 1 22-4 ½ - 1-0 22.37 sft 22.37 sft
2 7-3 - 1-0 7.25 sft 14.50 sft
Outer side of Verandah 1 23-10½ - 2-10½ 67.66 sft 67.66 sft
2 8-0 - 2-10½ 22.67 sft 45.32 sft
Top of parapet wall (Rooms) 2 23-10 ½ - 0-9 17.9 sft 35.80 sft
2 12-0 - 0-9 9.00 sft 18.00 sft
Top of parapet wall (Rooms) 1 23-10 ½ - 0-9 17.90 sft 17.90 sft
2 7-3 - 0-9 5.43 sft 10.87 sft
Total 1186.95 sft
95
Deduction
Windows 2 4-0 - 4-0 16.00 sft 32.00 sft
Ventilators 2 2-6 - 1-6 3.75 sft 7.50 sft
Total 39.50 sft
Net Total 1147.45 sft

96
ABSTRACT OF QUANTITIES
97
1- CALCULATIONS
1. Excavation in Medium soil
Quantity from BOQ item No. 1 Output of one labourer working 8 hrs 04 labourers are required for 3 ½ days to excavate 1050 cft earth. 1024.52 cft 75 cft
98
2. PCC (148)
Quantity of BOQ item No.3 (Foundations) 146.27 cft
Quantity of BOQ item No.11 (Floors) 142.07 cft
Total 288.34 cft
Note Dry material for 100 cft of cement concrete 154 cft
Materials
(i) Cement154x1x288.34/(100x13) 34.15cft
(ii) Sand154x4x288.34/(100x13) 136.62 cft
(iii) Coarse aggregate 154x8x288.34/(100x13) 273.25 cft
99
3. Ist Class Burnt brick work in foundation in cement sand mortar (16)
Quantity of BOQ item No.4 484.21 cft
Note Bricks for 100 cft of brick work 1350 Nos.
Dry mortar for 100 cft of brik work 30 cft
Material
(i) Bricks1350x484.21/100 6537 Nos.
(ii) Cement30x1x484.21/(7x100) 20.75 cft
(iii) Sand30x6x484.21/(7x100) 124.51cft
100
4. 1 ½ thick PCC (124) in DPC including two coats of hot bitumen 2 sheets of Polythene.
Quantity of BOQ item No.555.50x0.125 6.93 cft
Note (i) Dry material for 100 cft of cement concrete 154 cft
(ii) Bitumen for 100 sft of DPC (first coat) 15 Kg
(iii) Bitumen for 100 sft of DPC (second coat) 10 Kg
Material
(i) Cement154x1x6.93/(100x7) 1.52 cft
(ii) Sand154x2x6.93/(100x7) 3.04 cft
(iii) Coarse aggregate154x4x6.93/(100x7) 6.09 cft
(iv) Bitumen 25x55.50/100 13.87 Kg
(v) Polythene Sheet (2 x 55.5) 111.0 sft
101
5. Ist Class Burnt brick work in Super structure in cement sand mortar (14)
Quantity of BOQ item No.6 743.17 cft
Note (i) Bricks for 100 cft of brick work 1350 Nos.
(ii) Dry mortar for 100 cft of brik work 30 cft
Material
(i) Bricks1350x743.17/100 10033 Nos.
(ii) Cement30x1x743.17/(5x100) 44.59 cft
(iii) Sand30x4x747.13/(5x100) 178.36 cft
102
6. Reinforced cement concrete (124)
Quantity of BOQ item No.7 226.39 cft
Note Dry material for 100 cft of cement concrete 154 cft
Materials
(i) Cement154x1x226.39/(100x7) 49.80 cft
(ii) Sand154x2x226.39/(100x7) 99.61 cft
(iii) Coarse aggregate 154x4x226.39/(100x7) 199.22 cft
(Note (iv) Mild steel round bars 1 Kg 0.454 lbs) 1529 lbs 693.55 Kg
103
7. Roof insulation
Quantity of BOQ item No.9 430.72 sft
Note (i) Brick tiles for 100 sft roof insulation 360 Nos.
(ii) Dry mortar for 100 sft 9.00 cft
(iii) Bitumen for 100 sft of DPC (first coat) 15 Kg
(iv) Bitumen for 100 sft of DPC (second coat) 10 Kg
Material
(i) 1 ½ thick brick tiles 1551 Nos.
(ii) Cement9x1x430.72/(4x100) 9.69 cft
(iii) Sand9x4x430.72/(4x100) 29.07 cft
(iv) Bitumen 430.72/100 107.68 Kg
(v) Mud /Earth filling430.72x0.42 180.90 cft
(Vi) Polythene sheet (2 x 430.72) 862 sft
104
8. Sand under floors
Quantity of BOQ item No.10 213.11 cft
Material
Sand 213.11 cft
9. 1 ½ thick cement concrete (124) in floors
Quantity of BOQ item No.12457.80x0.125 57.23 cft
Note (i) 1 ½ 0.125 ft (ii) Dry material for 100 cft of cement concrete 154 cft
Materials
(i) Cement154x1x57.23/(100x7) 12.59 cft
(ii) Sand154x2x57.23/(100x7) 25.18 cft
(iii) Coarse aggregate 154x4x57.23/(100x7) 50.36 cft
105
10. 1/2 thick cement plaster in cement sand mortar (13)
Quantity of BOQ item No.13 3197.07 sft
Note Dry mortar for 100 sft of ½ thick cement plaster 6 cft
Material
(i) Cement6x1x 3197.07/(4x100) 47.96 cft
(ii) Sand6x3x 3197.07/(4x100) 143.87 cft
11. Wood work in door, windows ventilators
Quantity of BOQ item No.14 (i) Doors 56.00 sft
Quantity of BOQ item No.14 (ii) Windows 63.00 sft
Note (i) Timber for 100 sft of Panelled Doors 13 cft
(ii) Timber for 100 sft of Glazed windows and Ventilators 8 cft

Material
(i) Timber for doors 13x56/100 7.28 cft
(ii) Timber for windows and Ventilators 8x63/100 5.04 cft
Total 13.32 cft
106
12. White wash / Distemper
Quantity of BOQ item No.16 1872.9 sft
Note Lime for 100 sft of white wash (one coat) 1.00 Kg
Material
Lime for three coats1x3x1872.9/100 56.24 Kg
13. Weather Shield
Quantity of BOQ item No.17 1143.45 sft

14. Earth filling under floors
Quantity of BOQ item No.2 230.87 cft
Material
Earth for filling 230.87 cft

107
2- SUMMARY
S.No. Description of material Quantity
1. Cement (From 2,3,4,5,6,7,9,10) 220.68 cft or 177 Bags
2. Sand (From 2,3,4,5,6,7,9,10) 740.26 cft
3. Coarse aggregate (From 2,4,6,9) 528.92 cft
4. Mild steel round bars (item No 6) 693.55 Kg
5 Burnt bricks 1st class (From 3,5) 16570 Nos.
6 1/2 thick Brick tiles (item No 7) 1551 Nos.
7 Bitumen (From 4,7) 121.55 Kg
8 Polythene sheet (From 4,7) 973 sft
9. Timber (item No 11) 13.32 cft
10. Lime (item No 12) 56.24 Kg
11. Mud/Earth filling (From 7,13) 411.77 cft