9.9 KiB
title, tags, author, pages, publisher, type, year
| title | tags | author | pages | publisher | type | year | |||
|---|---|---|---|---|---|---|---|---|---|
| Mike Holt's Illustrated Guide to Electrical Estimating |
|
Mike C. Holt | 234 | Mike Holt Enterprises | book | 2023 |
Mike Holt's Illustrated Guide to Electrical Estimating
Chapter 1---Introduction
Introduction
1.1 Estimating versus Bidding
1.2 A Good Estimating System
1.3 Objectives and Purpose of an Electrical Contractor
1.4 Why So Many Electrical Contractors Are Unsuccessful
1.5 Project Management
1.6 Can I Be Competitive?
1.7 The Electrical Market
1.8 Negotiated Work
1.9 Best Value
Summary
Conclusion
Essay Questions
Multiple-Choice Questions
Chapter 2---About Estimating
Introduction
2.1 Qualities of a Good Estimator
2.2 Duties and Responsibilities of the Estimator
2.3 The Estimating Workspace and Tools
2.4 Types Of Bids
2.5 What an Accurate Estimate Must Include
2.6 Improper Estimating Methods
2.7 The Detailed Estimating Method
2.8 How Accurate Can an Estimate Be?
2.9 Manual Estimate, Estimating Software, or an Estimating Service?
Summary
Conclusion
Essay Questions
Multiple-Choice Questions
Chapter 3---Understanding Labor Units
Introduction
3.1 What is a Labor Unit?
3.2 How Labor Units Are Expressed
3.3 Using Work Experience
3.4 What Is Included in the Labor Unit?
3.5 Labor Units Do Nolinciuae
3.6 Labor-Unit Manuals
3.7 How to Develop Your Own Labor Units
3.8 Your Labor Units as Compared to Your Competitors
3.9 Knowing Your Competitors' Labor Units
3.10 Variables That Affect Labor Units
3.11 Are You for Real?
Summary
Conclusion
Essay Questions
Multiple-Choice Questions
Chapter 4---The Estimating Process
Introduction
4.1 Job Selection
4.2 Understanding the Scope Of Work
4.3 Preparing for the Estimate
4.4 Plans and Specifications Review
4.5 Estimate and Bid Notes
4.6 Estimating Forms and Worksheets
4.7 The Take-Off
4.8 Determining the Bill-of-Material (Manual Estimate)
4.9 Pricing and Laboring
4.10 Extensions An Totals
Summary
Conclusion
Essay Questions
Multiple-Choice Questions
Chapter 5---Determining Break-Even Cost
Introduction
5.1 Labor Houis (Step A)
5.2 Labor Cost (Step B)
5.3 Labor Rate Per Man-Hour
5.4 Labor Burden
5.5 Total Material Cost (Step C)
5.6 Direct Job Expenses (Step D)
5.7 Estimated Prime Cost (Step E)
5.8 Overhead (Step F)
5.9 Overhead Calculation Methods
5.10 Break-Even Cost (Estimated Cost) (Step G)
Summary
Conclusion
Essay Questions
Multiple-Choice Questions
Chapter 6---The Bid Process
Introduction
6.1 Profit (It s Not a Dirty Word)
5.2 Profit to Prime Cost
6.3 Other Bid Cost Considerations
5.4 Bid Accuracy
5.5 Bid Analysis
6.6 Bid Proposal
Summary
Conclusion
Essay Questions
Multiple-Choice Questions
Chapter 7---Unit Pricing
Introduction
Now that you have learned the detailed estimating method and bid process, we are going to show you an alternative estimating method. It is called "unit pricing," and using it will save you time. You can safely use unit pricing on renovations, office build-outs, change orders, and other simple or small-scope jobs.
7.1 What Is Unit Pricing?
Unit pricing consists of developing an average price to install a given electrical component, such as a duplex receptacle, a 2 x 4 fluorescent fixture, or a switch. This price includes the outlet box, an average number of wire connectors, mounting hardware, and the typical number of raceway or cable box connectors. The "unit price" is then multiplied by the number of units on the drawings to arrive at a total bid price for the installation.
7.2 Advantages and Disadvantages of Unit Pricing
You still do a take-off to determine the number of luminaries, switches, receptacles, and so forth. However, you just do not separately count the boxes, fittings, and other parts included in the unit pricing components. Often you do not measure the wiring runs for every opening, but use an average length per installed outlet as part of the "unit."
Homeruns to panelboards, communications cabinets, and so on, must still be measured in the usual manner.
Advantages
Unit pricing is faster and easier than the detailed estimating method described earlier in Chapters 4, 5, and 6. It takes less time and therefore costs your company less money to determine the selling price for a job. Unit pricing is relatively accurate on repetitive jobs where many identical items of electrical equipment will be installed under the same (or fairly similar) conditions.
Disadvantages
Unit pricing is not suitable for jobs where outlets are not located at standard intervals. For example, if you have 200 identical fluorescent luminaries to install in a building where the ceiling heights vary from 8 ft to 15 ft in different areas, unit prices will need to be adjusted to an average luminaire height, or different unit prices will need to be applied for the different ceiling heights.
7.3 Unit Price Example
It is easier to demonstrate this concept with an example rather than trying to explain it in words.
Determine the unit price for a duplex receptacle based on the following factors:
- Labor Hour Adjustment---10%
- Labor Burden---included in overhead
- Labor Rate---$18 per man-hour
- Material Cost Adjustment---15% (waste, theft, miscellaneous)
- Sales Tax---7%
- Overhead---$18 per man-hour
- Profit---15% of Selling Price
%% TABLE OMITTED %%
Summary
Introduction
An alternative estimating method is called "unit pricing," and using it will save you time. You can safely use unit pricing on renovations, office build-outs, change orders, and other simple or small-scope jobs.
7.1 What is Unit Pricing?
Unit pricing consists of developing an average price to install a given electrical component. This price includes the outlet box, an average number of wire connectors, mounting hardware, and the typical number of raceway or cable box connectors. The "unit price" is then multiplied by the number of units on the drawings to arrive at a total bid price for the installation.
7.2 Advantages and Disadvantages of Unit Pricing
You still do a take-off to determine the number of luminaries, switches, receptacles, and so forth. However, you just do not separately count the boxes, fittings, and other parts included in the unit pricing components. Often you do not measure the wiring runs for every opening, but use an average length per installed outlet as part of the "unit."
Homeruns to panelboards, communications cabinets, and so on, must still be measured in the usual manner.
Advantages. Unit pricing is faster and easier than the detailed estimating method. It takes less time and therefore costs your company less money to determine the selling price for a job.
Unit pricing is relatively accurate on repetitive jobs where many identical items of electrical equipment will be installed under the same (or fairly similar) conditions.
Disadvantages. Unit pricing is not suitable for jobs where outlets are not located at standard intervals.
Conclusion
From the example, you can see that the unit pricing method can be a real time saver. Do not let this lull you into trading time for the accuracy required for estimating projects that are not small or simple. Even minor variations in the work environment can call for adjustments to the unit pricing method.
Your company can use other costing and pricing methods as well. All of these have limited applications. Going outside the limits of these methods, or of unit pricing, can result in large financial losses.
As you practice the unit pricing method and the more rigorous detailed estimating method you learned earlier, you will become more adept at each. The first few times you use the unit pricing method, you may also want to use the more rigorous detailed method and compare the results.
Essay Questions
-
What is an alternative estimating method called that will save you time, and on what types of jobs can it be safely used?
-
What does the average unit price include?
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When using unit pricing, what must still be measured in the usual manner?
-
What are the advantages of using unit pricing?
-
What are the disadvantages of using unit pricing?
Multiple-Choice Questions
Introduction
- An alternative to the detailed estimating method and bid process is called the "___" method.
- (a) square foot
- (b) unit pricing
- (c) shot-in-the-dark
- (d) none of these
7.1 What Is Unit Pricing?
- Unit pricing consists of developing a(n) ___ price to install a given electrical component.
- (a) set
- (b) estimated
- (c) average
- (d) flexible
- The "unit price" is by the number of units on the drawings to arrive at a total bid price for the installation.
- (a) added
- (b) subtracted
- (c) multiplied
- (d) divided
7.2 Advantages and Disadvantages of Unit Pricing
- The biggest advantage when using unit pricing is that you do not need to complete a take-off to determine the number of luminaries, switches, receptacles, and so forth.
- (a) True
- (b) False