Hicks' Builders' guide, comprising an easy, practical system of estimating material and labor for carpenters, contractors and builders (1907)
Hicks, I. P. (Isaac Perry), b. 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 the Steel 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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