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 138
lain and easily understood that no one need haveany difficulty in findingthe length and cut of anyrafter. The pitch of aroof is always designatedby the number of inchesit rises to the foot run,hence the cut of a com-mon rafter is always 12for the bottom cut andfor the top cut is the riseof the roof… … Fig. 98.—Finding Lengths of JaclsRafters. THE BUILDERS 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…
Carpentry · Building
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