Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 425
to Foot of Kuu. 350 THE STEEL SQUARE 11 spond with the 12 inches run and 9 inches rise of the common rafter;and for the 2 pitch, the figiues to be used on the square will be 17inches run and 12 inches rise, to correspond with the 12 inches runand 12 inches rise of the common rafter. It will be… … Fig. 16. Method of Layin^ Out Common Rafters of a J^-Pitch Roof. the square for run will be 17 inches; and for the rise, whatever the roofrises to the foot of run. It should also be remembered that this is thecondition in all roofs of equal pitch, where the angle of the hip orvalley is a 45-degree…
Architecture · Building · Carpentry
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