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 141
sents the run of common rafter,and measure perpendicularly from the tongue to thestraight edge on the line of each jack for their length.The lengths of hips, valleys and jacks on roofs ofunequal pitches may be found in the same mannerby taking figures on the blade and tongue of a squarewhich will… … Fig. 101.—Obtaining the Lengths of Jack Rafters with theSteel Square. Referring to Fig. 102, take 13 inches on the blade ofa square and 8 inches on the tongue and measureacross. This gives 15^ inches, equal to 15 feet 3inches, which is the length of the common rafter onthe left side of hip. Now, 13…
Carpentry · Building
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