Figure 2-21. - Sample equipment estimate (page 1).

P-437 not only gives the man-hours required but also sheet to prepare your detailed estimates and then select gives a breakdown of the construction efforts by rating as well as lapse time which is expressed in the following equation. The P-437 estimates all labor on 10 hour workdays; however, do not mistake this with the normal workday of 8 man-hours per man-day.

Detailed Estimates

Use detailed material estimates and equipment estimates to assist you in determining the labor requirements for constructing a given project. Take the individual activity quantities from the activity work the man-hours per unit figure from the appropriate table in P-405 and multiply it by the quantity to obtain the total man-hours required. When preparing the activity estimates in the format covered earlier, you may use a copy of the activity estimates as a labor estimate work sheet by adding four columns to it with the headings of Activity, Quantity, Man-Hours per Unit, and Total Man-Days required. Prepare work sheets, whether on the activity work sheet or on another format, in sufficient detail to provide the degree of progress control desired.