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 136
134 THE builders GUIDE. The lengths and bevels of the jacks for the dif-ferent pitches may be found as shown in Figs. 62, 63or 64. Again, it is evident that a jack rafter must bethe same shape as the common rafter on the sameside of roof from the bottom, or plate, up to thepoint where it joins the… … Fis- 96.—Developing tlie Shape of the Hips. common rafter, D E the rise and A E the length andwork line. To find the length of jack, set off the runof jack A B and square up the rise B C to the workline of the common rafter; then A C is the length ofjack on the work line. This method is very…
Carpentry · Building
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