![To use your own data to find hrs/BF or hrs/SF, divide average hours used for each framing task by total SF or BF of materials used. (BF = thickness x width [in inches] x length [in feet] ÷ 12). This table shows figures for tasks associated with framing and sheathing a typical exterior wall.](https://cdnassets.hw.net/dims4/GG/1cf49c4/2147483647/strip/true/crop/479x319+374+0/resize/416x277!/quality/90/?url=https%3A%2F%2Fcdnassets.hw.net%2F2b%2F55%2F4ed77a2c43568db3d9f525920f65%2Flabor-hours-tcm96-2096398.jpg)
While unit prices for labor are available from a number of sources, the best source is a company's own job history. This article uses an example of framing an exterior wall to show how to use that data to calculate unit costs for labor based on material quantities.
The foundation of every computerized estimating system is its database of unit prices, but how do you begin to build a price? George Weissgerber outlines the process from start to finish.
Gather accurate information for your estimates
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