Hicks' builders' guide : comprising an easy, practical system of estimating material and labor for carpenters, contractors and builders .. (1910)
Hicks, Isaac Perry, 1856- · New York : David Williams Company · leaf 139
UILDERS GUIDE, 137 and 8 will cut the hip or valley. The top bevel of ajack rafter is always 12 on the tongue of a square andthe length of the common rafter for a foot run onthe blade. The blade gives the cut. In other words,the run of the common rafter on the tongue and thelength on the blade will… … Fig. 99.- -Finding Length of a Common Rafter by Means of theSteel Square. common rafter take the run on the blade of a squareand the rise on the tongue, measure across, and wehave the length. For example, if the run of a rafteris 12 feet and the rise 8 feet, take 12 inches on theblade and 8 inches…
Carpentry · Building
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