Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 431
to cover. For this additional length, take 6 inches on the blade(it being \ a foot run) for run, and take \ of 9 on the tongue (which isih inches), and step one time. This, in addition to what has alreadybeen found by stepping 13 times with 12 and 9, will give the full lengthof the rafter. The… … Fig. 18. Method of Laying Out Hips and Rafters forRoofs of Various Pitches over Square Corner. 354 THE STEEL SQUARE 13 limber for the plumb cut. Square No. 1 is shown applied with 12 onblade and 9 on tongue for the length of the 13 feet. Square from thiscut, measure 6 inches, the additional inches…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
