Electrical Estimating Methods



CHAPTER 1

 
Components of an Estimate / 3

CHAPTER 2

Types of Estimates / 7
Order of Magnitude Estimates / 8
Square Foot Estimates / 9
Assemblies Estimates / 10
Unit Price Estimates / 11

CHAPTER 3

Before Starting the Estimate / 15
Obtaining Bid Documents / 15
To Bid or Not to Bid / 15
Document Study / 16
Estimating Team Meeting / 17

CHAPTER 4

The Quantity Takeoff / 19
Beginning the Quantity Takeoff
f / 19
Rules to Follow for Accurate Takeoffs / 20
Accounting for Waste / 24
Other Factors that Affect Quantities / 26

CHAPTER 5

Pricing the Estimate / 27
Sources of Cost Data / 27
Cost Categories / 29
Types of Costs / 29
Profit / 29

CHAPTER 6

Direct Costs / 31
Material
/ 31
Labor / 33
Equipment / 37
Subcontractors / 38
Project Overhead / 40
Bonds / 42

CHAPTER 7

Indirect Costs / 45
Home Office Overhead / 45
Profit and Contingencies / 48

CHAPTER 8

The Unit Price, Project Overhead Summary, and
Estimate Summary Sheets / 55
Unit Price Sheet / 55
Project Overhead Summary Sheet / 56
The Estimate Summary Sheet / 59

CHAPTER 9

Prebid Scheduling / 69
Scheduling Theory / 69
Critical Path Method (CPM) / 70
Value of the Prebid Schedule / 71
Task Types / 72
Task Durations / 73
Calculating Durations / 74
Milestones and Constraints / 76

CHAPTER 10

Bidding Strategies / 77
The Business Plan / 77
Competitive Bidding / 78
Resource Analysis / 80
Market Analysis / 81
General Bidding Strategies / 82
Maximizing the Profit-to-Volume Ratio / 84

CHAPTER 11

Project Cost Control and Analysis / 87
Cost Control / 87
Productivity and Efficiency
/ 90
Overtime Impact / 91

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