The carpenter's new guide; a complete book of lines for carpentry and joinery, treating fully on practical geometry, soffits, groins, niches, roofs, and domes, and containing a great variety of original designs. Also a full exemplification of the theory and practice of stair building, cornices, mouldings, and dressings of every description. Including also some observations and calculations on the strength of timber (1854)
ill G k^ . \. V i. / … ROOFS. 43 PLATE 28. ROOFS. To find ilie principal Lines of a Roof. Let AB C D be the plan of a roof; take D L half the width of the roof, and make D Fand Coequal to it. Join EF; and having bisected E F aX H, take (r IT equal to the heightof the roof, and perpendicular to EF, and join QE and OF, and…
Carpentry
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