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Estimating in Building
Construction
Introduction to Estimating
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Grade Composition
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25% Exam 1
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25% Exam 1
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40% Final Exam
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10% Attendance and Participation
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
2
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Course Content
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1: Introduction to Estimating
2: The Estimate
3: Overhead and Contingencies
4: Labor
5: Equipment
6: Excavation
7: Concrete
8: Masonry
9: Metals
10: Wood
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
3
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Estimating in Building
Construction
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The determination of probable
construction costs for a project
Prepared from the contract documents:
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Plans
Project manual
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
4
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Estimating in Building
Construction
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Used to:
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Establish project budget
Order materials
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
5
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Profit Margin
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Provides the general contractor an
acceptable rate of return and
compensation for the risk associated
with the project
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
6
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Types of Estimates
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Detailed estimate
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Determines the quantity and cost of
everything required for the project, including:
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Materials
Labor
Equipment
Insurance
Bonds
Overhead
Etc.
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
7
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Types of Estimates
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Assembly estimating
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Bid by groups of components (assemblies)
For example, a light switch would include:
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Single-gang box
Single-pole switch
Cover plate
Two wire nuts
20 feet of wire
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
8
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Types of Estimates
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Square-foot estimates
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Bid based on an average cost per square
foot
May be adjusted for:
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Building height
Building perimeter
Etc.
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
9
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Types of Estimates
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Project comparison
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Prepared by comparing the costs of a
proposed project to a similar project
Adjusted for differenced between the
comparison project and the project being
estimated
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
10
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Estimating Opportunities
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Architectural offices
Engineering offices
Subcontractors
Material suppliers
Manufacturers’
representatives
Project management
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
11
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Government
Residential
construction
Computer Software
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Quantity Takeoff Skills
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Read and quantify plans
Knowledge of math and geometry
Patience
Does careful, thorough work
Computer literate with takeoff software
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On-Screen Takeoff
Paydirt
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
12
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Additional Estimating Skills
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Visualize building from plans
Foresee problems
Experienced in the construction process
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Methods of handling materials
Labor productivity
Convert labor productivity to costs
Maintain a cost database
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
13
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Additional Estimating Skills
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Computer literate with:
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Spreadsheets
Estimating software such as WinEst
Meets bid deadlines
Strong writing and presentation skills
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
14
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Types of Bids
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Competitive
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Awarded based upon:
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Price
Best value
Negotiated bids
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Owner and contractor agree upon a price
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
15
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Bid Contract Documents/(Paperwork)
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Invitation to Bid
Instructions to Bidders
Bid Form
Owner-Contractor Agreement
General Conditions of the Contract
Supplementary General Conditions
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
16
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Contract Documents
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Technical Specifications
Working Drawings
Addenda
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
17
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
Bid Information
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Publicly advertized in:
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Newspapers
Trade journals
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Dodge Reports
Engineering New Record (ENR)
Internet
Estimating in Building Construction, 8th edition
Frank R. Dagostino | Steven J. Peterson
18
Copyright © 2015 by Pearson Education, Inc.
All Rights Reserved
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