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Summary
Summary
Companies live or die on the basis of estimating their costs. Preparing estimates and bidding for new jobs is a complex and often costly process. There is no substitute for on the job training -- until now. Drawing on the authors' combined experience of more than 70 years, Estimating Building Costs presents state-of-the-art principles, practices, and techniques for assessing these expenditures that can be applied regardless of changes in the costs of materials, equipment, and labor. The book is an efficient and practical tool for developing contracts or controlling project costs.
The authors cover the major components of the direct cost: estimating procedures and cost trends related to materials, construction equipment, and skilled and unskilled labor. They describe various types of building estimates encountered during the lifecycle of a project, as well as the role and accuracy of each. The book provides an overview of the industry, cost indexes in use, approaches to preparing a detailed estimate, and an in-depth description of the organization and function of the estimating group. Including CSI Master Format and UniFormat codes, estimating forms, a list of available estimating software packages, a detailed construction site and investigation report, the book provides a cost estimating methodology that readers can tailor to their own organizational needs.
Author Notes
Calin M. Popescu is an Associate Professor of Civil Engineering at the University of Texas at Austin
Kan Phaobunjong is with Turner Construction Company, Houston Business Unit, Texas
Nuntapong Ovararin is a Lecturer in Civil Engineering and Associate Director of Construction Management at King Mongkut's University of Technology Thonburi, Bangkok, Thailand
Table of Contents
Preface | p. iii |
Acknowledgments | p. v |
Introductory Remarks | p. xiii |
Units Conversion | p. xv |
1 Introduction | p. 1 |
1.1 Construction Industry | p. 2 |
1.2 Construction Cost Indexes | p. 10 |
1.3 Preparing the Detailed Estimate | p. 27 |
1.4 Sources for New Projects | p. 34 |
1.5 Building Cost Information Standards | p. 37 |
1.6 Errors and Omissions Management | p. 45 |
1.7 The Estimating Department | p. 45 |
1.8 Review Questions | p. 52 |
2 Types of Estimates | p. 54 |
2.1 Building Cost Estimates Classification | p. 55 |
2.2 Conceptual Estimate (Engineer's Estimate) | p. 59 |
2.3 Firm Price Contracting Estimate | p. 64 |
2.4 Nonfirm-Price Contracting | p. 76 |
2.5 Accuracy of Cost Estimates | p. 80 |
2.6 Review Questions | p. 86 |
3 Estimating the Cost of Materials | p. 87 |
3.1 Determining Material Quantities | p. 88 |
3.2 Waste Factors | p. 90 |
3.3 Pricing Materials | p. 95 |
3.4 Material Pricing Sources | p. 97 |
3.5 Trends in Material Prices | p. 99 |
3.6 Review Questions | p. 106 |
4 Estimating the Cost of Labor | p. 107 |
4.1 Construction Labor | p. 108 |
4.2 Construction Labor Environment in the United States | p. 112 |
4.3 Monetary Factors | p. 114 |
4.4 Labor Productivity | p. 118 |
4.5 Review Questions | p. 130 |
5 Estimating the Cost of Construction Equipment | p. 131 |
5.1 Introduction | p. 132 |
5.2 Construction Equipment | p. 132 |
5.3 Equipment Planning | p. 135 |
5.4 Equipment Procurement Sources and Associated Costs | p. 139 |
5.5 Construction Tools | p. 155 |
5.6 Review Questions | p. 156 |
6 The Bidding Process | p. 157 |
6.1 Getting a Construction Contract: A Contractor's Perspective | p. 157 |
6.2 Subcontracted Work | p. 158 |
6.3 Pre-Bid Conference | p. 159 |
6.4 Bidding Flowchart | p. 159 |
6.5 Alternates and Unit Prices | p. 169 |
6.6 Closing the Bid | p. 170 |
6.7 Review Questions | p. 171 |
7 Site Work | p. 172 |
7.1 Introduction to Site Work | p. 173 |
7.2 Subsurface Investigation | p. 174 |
7.3 Site Preparation | p. 175 |
7.4 Earthwork | p. 181 |
7.5 Excavation Support | p. 205 |
7.6 Construction Dewatering | p. 209 |
7.7 Piles Foundation | p. 210 |
7.8 Paving and Surfacing | p. 211 |
7.9 Site Improvements and Landscaping | p. 211 |
7.10 Review Questions | p. 213 |
8 Concrete | p. 215 |
8.1 Introduction to Concrete Work | p. 216 |
8.2 Basic Concrete Materials and Methods | p. 220 |
8.3 Concrete Forms and Accessories | p. 229 |
8.4 Concrete Reinforcement | p. 236 |
8.5 Cast-in-Place Concrete | p. 245 |
8.6 Precast Concrete | p. 251 |
8.7 Cementitious Decks and Underlayment | p. 259 |
8.8 Review Questions | p. 263 |
9 Masonry | p. 264 |
9.1 Introduction to Masonry | p. 265 |
9.2 Clay Masonry Units (Brick) | p. 271 |
9.3 Concrete Masonry Units | p. 281 |
9.4 Other Types of Masonry Units | p. 287 |
9.5 Masonry Mortar | p. 290 |
9.6 Masonry Grout, Reinforcement, and Masonry Accessories | p. 300 |
9.7 Masonry Cost Estimation | p. 306 |
9.8 Review Questions | p. 314 |
10 Metals | p. 316 |
10.1 Introduction to Metals | p. 317 |
10.2 Structural Metal Framing | p. 322 |
10.3 Metal Joists | p. 337 |
10.4 Metal Decking | p. 344 |
10.5 Light-Gauge Framing and Miscellaneous Metals | p. 348 |
10.6 Review Questions | p. 352 |
11 Wood | p. 353 |
11.1 Introduction | p. 354 |
11.2 Rough Carpentry | p. 354 |
11.3 Finish Carpentry | p. 384 |
11.4 Review Questions | p. 392 |
12 Thermal and Moisture Protection | p. 393 |
12.1 Introduction to Thermal and Moisture Protection | p. 394 |
12.2 Waterproofing | p. 396 |
12.3 Dampproofing | p. 402 |
12.4 Insulation | p. 403 |
12.5 Roofing | p. 407 |
12.6 Sample of Quantity Take-Off and Pricing for Moisture Protection | p. 412 |
12.7 Review Questions | p. 415 |
13 Doors and Windows | p. 416 |
13.1 Introduction to Doors and Windows | p. 417 |
13.2 Doors and Door Frames | p. 420 |
13.3 Windows and Window Frames | p. 428 |
13.4 Glazing, Hardware, and Accessories | p. 433 |
13.5 Doors and Windows Cost Estimation | p. 447 |
13.6 Review Questions | p. 440 |
14 Finishes | p. 448 |
14.1 Lath and Plaster Work | p. 449 |
14.2 Gypsum Plasterboard Systems | p. 459 |
14.3 Ceramic Tile Work | p. 472 |
14.4 Marble and Stone Flooring | p. 477 |
14.5 Terrazzo Work | p. 487 |
14.6 Acoustical Treatment | p. 498 |
14.7 Finished Wood Flooring | p. 503 |
14.8 Resilient Flooring | p. 517 |
14.9 Carpets, Underlay, and Trim | p. 523 |
14.10 Painting and Decorating | p. 530 |
14.11 Wall Coverings | p. 542 |
14.12 Review Questions | p. 552 |
15 Mechanical Work | p. 553 |
15.1 Introduction to Plumbing and Sewage Systems | p. 554 |
15.2 Rough and Finish Plumbing | p. 555 |
15.3 Plumbing Codes and Specifications | p. 556 |
15.4 Plumbing Systems | p. 556 |
15.5 Sewage Systems | p. 560 |
15.6 Materials for Plumbing and Sewage Systems | p. 560 |
15.7 Labor for Plumbing and Sewage Systems | p. 562 |
15.8 Cost Estimate for Plumbing and Sewage Systems | p. 563 |
15.9 Introduction to Heating, Ventilation, and Air Conditioning | p. 566 |
15.10 Heating, Ventilating, and Air Conditioning Systems | p. 567 |
15.11 Labor for HVAC Systems | p. 568 |
15.12 Cost Estimate for HVAC Systems | p. 568 |
15.13 Review Questions | p. 571 |
16 Electrical Work | p. 572 |
16.1 Introduction to Electrical Work | p. 573 |
16.2 Take-Off Procedures for Various Electrical Components | p. 576 |
16.3 Pricing Electrical Work | p. 583 |
16.4 Review Questions | p. 587 |
17 Jobsite Overhead | p. 589 |
17.1 Introduction: The Cost of Doing Business | p. 590 |
17.2 Jobsite Personnel | p. 596 |
17.3 Travel Expenses | p. 597 |
17.4 Site Engineering Support | p. 598 |
17.5 Construction Equipment and Aids for General Use | p. 598 |
17.6 Temporary Field Buildings--Offices | p. 599 |
17.7 Temporary Site Utilities | p. 601 |
17.8 Horizontal Temporary Construction | p. 602 |
17.9 Materials Storage Facilities | p. 603 |
17.10 Camp Facilities | p. 606 |
17.11 Production Facilities for Remote Sites | p. 612 |
17.12 Personal Protective Aids | p. 623 |
17.13 Site Security | p. 624 |
17.14 Miscellaneous Expenses | p. 624 |
17.15 Review Questions | p. 627 |
18 Surety Bonds, Insurance, and Taxes | p. 628 |
18.1 Surety Bonds | p. 629 |
18.2 Insurance | p. 638 |
18.3 Taxes (County, State, Federal) | p. 645 |
18.4 Review Questions | p. 649 |
19 General Overhead, Contingencies, and Profit | p. 651 |
19.1 General Overhead (Home Office Expenses) | p. 653 |
19.2 General Overhead Allocation | p. 655 |
19.3 Construction Contingencies | p. 655 |
19.4 Contractor/Subcontractor Profit | p. 656 |
19.5 Review Questions | p. 658 |
Appendix 1 MasterFormat Lite and UniFormat Lite | p. 660 |
Appendix 2 Estimating Forms | p. 672 |
Appendix 3 Cost Estimating Software | p. 683 |
Appendix 4 Cost Estimating Sources | p. 696 |
Appendix 5 Construction Site Investigation Report | p. 704 |
References | p. 723 |
Index | p. 733 |