Quantity Estimation

CE3701-ECVE - Prof. AK
CE3701 - Estimation, Costing And Valuation Engineering
Prepared By: Dr. A. Ananthakumar, M.E (STRUCT)., Ph.D.,
COURSE OBJECTIVE:
The students will acquire knowledge in estimation, tender practices, contract
procedures, and valuation and will be able to prepare estimates, call for tenders
and execute works.
Credit 3

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SYLLABUS
 UNIT I QUANTITY ESTIMATION 9
Philosophy – Purpose – Methods of estimation – Centre line method – Long and short wall
method – Types of estimates – Approximate estimates – Detailed estimate – Estimation of
quantities for buildings, bituminous and cement concrete roads, septic tank, soak pit,
retaining walls – Culverts (additional practice in class room using computer software’s- qE
Pro)
 UNIT II RATE ANALYSIS AND COSTING 9
Standard Data – Observed Data – Schedule of rates – Market rates – Materials and Labour –
Standard Data for Man Hours and Machineries for common civil works – Rate Analysis for all
Building works, canals, and Roads – Cost Estimates (additional practice in class room using
Computer softwares) – (Analysis of rates for the item of work asked, the data regarding
labour, rates of material and rates of labour to be given in the Examination Question Paper)

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SYLLABUS (Condi..)
UNIT III SPECIFICATIONS, REPORTS AND TENDERS 9
Specifications – Detailed and general specifications – Constructions – Sources – Types of specifications –
Principles for report preparation – report on estimate of residential building – Culvert – Roads – TTT Act
2000 – Tender notices – types – tender procedures – Drafting model tenders , E-tendering- e NOI – e NOT -
Digital signature certificates – Encrypting -Decrypting – Reverse auctions.
UNIT IV CONTRACTS 9
Contract – Types of contracts – BOT – Types - Formation of contract – Contract conditions – Contract for
labour, material, design, construction – Drafting of contract documents based on IBRD / MORTH Standard
bidding documents – Construction contracts – Contract problems – Arbitration ,litigation and legal
requirements.
UNIT V VALUATION 9
Definitions – Various types of valuations – Valuation methods - Necessity –Year’s purchase-sinking fund-
Capitalised value – Depreciation – Escalation – Valuation of land – Buildings – Calculation of Standard rent –
Mortgage – Lease - Types of lease

August 7, 2026
SYLLABUS (Condi..)
COURSE OUTCOMES:
The student will be able to
CO1 Gain knowledge on types of contracts.
CO2 Understand types of specifications, principles for report preparation, tender notices types.
CO3 Rate Analysis for all Building works, canals, and Roads and Cost Estimate.
CO4 Estimate the quantities for buildings.
CO5 Evaluate valuation for building and land.
TEXT BOOKS:
1. B.N Dutta ‘Estimating and Costing in Civil Engineering’, CBS Publishers & Distributors (P) Ltd,
Twenty eighth revised edition, 2020.
2. B.S.Patil, ‘Civil Engineering Contracts and Estimates’, 7 edition, University Press, 2015
3. D.N. Banerjee, ‘Principles and Practices of Valuation’, V Edition, Eastern Law House, 2015

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References
 Hand Book of Consolidated Data – 8/2000, Vol.1, TNPWD
 Tamil Nadu Transparencies in Tenders Act, 1998 and rules 2000
 Arbitration and Conciliation Act, 1996
 Standard Bid Evaluation Form, Procurement of Good or Works, The World
Bank, April 1996
 Standard Data Book for Analysis and Rates, IRC, New Delhi, 2019

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Unit 1 – Quantity Estimation
 ESTIMATION
Estimation is the scientific method of determining the approximate cost of
an engineering project before its execution.
 It may differ from the exact cost calculated after the project's completion.
 Estimation requires thorough knowledge of construction procedures,
material and labor costs, along with skill, experience, foresight, and good
judgment.

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1. Philosophy
Quantity estimation is the backbone of project planning in civil engineering.
It involves calculating the expected costs and resources needed for a project,
allowing for efficient budgeting and resource allocation.

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2. Purpose
 Budget Control: Helps in setting a budget and ensuring the project stays
within financial constraints.
 Resource Planning: Determines the quantity of materials and labor
required, ensuring that resources are available when needed.
 Project Feasibility: Assesses whether a project is financially viable and
worth pursuing.
 Decision-Making: Provides essential data for making informed decisions
regarding project scope, design, and execution.

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3. Methods of estimation
 Centre Line Method:
 Description: Calculates the total length of the center lines of walls and
partitions, considering the building's layout.
 Usage: Suitable for buildings with consistent wall thicknesses and
symmetrical layouts.
 Calculation: Sum the center lines of all walls, including both internal
and external walls, and multiply by the wall thickness and height to find
quantities.

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3.1 Centre Line Method

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3. Methods of estimation (cond…)
Long and Short Wall Method:
 Description: Separates walls into long and short categories, measuring
their lengths individually.
 Usage: Effective for buildings with varying wall thicknesses or irregular
layouts.
 Calculation:
 Measure the outer lengths of long walls.
 Measure the inner lengths of short walls.
 Adjust lengths by adding/subtracting half the breadth of walls at
junctions.

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3.2 Long and Short Wall Metod:

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3.2 Long and Short Wall Method

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4. Types of estimates
 Approximate Estimates:
 Purpose: Provides a rough cost figure for initial project evaluation.
 Methods:
 Plinth Area Method: Calculates the cost based on the plinth area
(covered area) of the building multiplied by the plinth area rate.
 Cubic Rate Method: Uses the volume of the building (length ×
breadth × height) multiplied by the cubic rate to estimate the cost.
 Usage: Suitable for feasibility studies, preliminary budgeting, and early-
stage planning.

4. Types of estimates (cond…)
 Detailed Estimates:
 Purpose: Offers a precise calculation of costs and quantities for
comprehensive project planning and execution.
 Components:
 Measurements: Detailed measurements of all components (e.g., walls,
floors, roofs).
 Unit Rates: Application of current market rates for materials and labor.
 Breakdown: Itemized list of all construction activities and their
associated costs.
 Usage: Essential for obtaining project approval, securing funding, and
guiding the actual construction process.

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August 7, 2026
 (a) Estimate the following quantity for the plan of a single room building
of 5m×4m and sections represents the cross sections of the walls with
foundation. (i) Earthwork in excavation in foundation, (ii) cement
concrete in foundation, (iii)Brickwork in foundation and plinth.
Model AUE Questions

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 B) Calculate the quantities of a R.C.C retaining wall of 25m in length whose cross
section is given below. Steel bars in reinforcement shall have to be taken separately.
(a) Do the rate analysis of
(i) P.C.C. (1:4:8) below footing in foundations.
(ii) First Class brick work in C.M. 1:8 upto plinth.
Model AUE Questions

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 (a) The plan represents the plan of superstructure wall of a single room building
of 5 m × 4 m and section represent the cross sections of the walls with
foundation. Estimate the quantities of
1. Earthwork in excavation in foundation (4)
2. Cement concrete in foundation (3)
3. Brickwork in foundation and plinth (3)
4. Brickwork in superstructures (3)
Model AUE Questions

August 7, 2026
 Prepare a detailed estimate of R.C.C. beam of 8 m clear span and 75 cm × 40 cm in
section from the given drawing. Steel in detail and R.C.C. work shall be calculated
separately.
Model AUE Questions

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For the building shown in fig.1.Determine the quantities of the following items of
work. Sand filling in plinth, RCC work in slabs and beams, I class brickwork in
foundation and plinth.
Model AUE Questions

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 Estimate the quantities of the following items of work shown in figure 11(a)
1. Earth work Excavation in foundation,
2. PCC in foundation
3. Brick work I foundation
4. Damp proof course 4cm thick(1:2:4)
Model AUE Questions

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Model AUE Questions
Prepare a detailed estimate of a septic tank with soak pit for 25 users from the
given drawing Fig.11(b).

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Model AUE Questions
(a) Estimate the quantities of the following items for the building giving in fig I.
(i) Earthwork excavation in foundation,
(ii) PCC in foundation
(iii) Stone masonry in footings and plinth
(iv) Material in damp proof course
(v) Material in steps.
(b) Estimate the quantities of the following items of works for the buildings as shown fig.I.
(i) Material in floor
(ii) Brick work in superstructure
(iii) Material in roof and weathering course
(iv) Plastering interior and exterior
(v) Material in parapet wall.

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Model AUE Questions
Dimension of Components:
PCC in foundation: 1200mm×200mm
Stone work in first footing :800mm×200mm
Stone work in second footing:600mm×250mm
Plinth below ground level (Stone masonry):
400mm×300mm
Plinth above ground level (Stone masonry):
400mm×600mm
Super structure wall (brick work) at 230mm
thickness with height 4000mm
Parapet wall at 150mm thickness and height
1000mm
Thickness of roof slab 120mm
DPC at 25mm thickness
Thickness of sand filling in floor: 500mm
Thickness of floor base: 75mm

August 7, 2026
THANK YOU…

Quantity Estimation

Quantity Estimation

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