American carpenter and builder, august 1906 (1906)
American Carpenter and Builder Co. · American Carpenter and Builder Co. · leaf 35
ny twelfths of an inch. Thusit is 12 twelfths or one inch for the square-corneredbuilding, 8^4 twelfths for the pentagon, 7 twelfths forthe hexagon, 5 twelfths for the octagon. The figuresto use for other polygonal roofs are shown in Fig. 76but the reader must bear in mind that the fractionalpart… … we call it 5 twelfths of an inch for the amount to setoff on the seat cut line as before described and shownin Fig. 79. AMERICAN CARPENTER AND BUILDER 541 The backing line for a hip for a triangular buildingwould be 21 twelfths or i % inches to set off on the seatcut line, the latter being obtained…
Rough carpentry · Architecture · Designs and plans
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