The American house-carpenter; a treatise upon architecture, cornices and mouldings, framing, doors, windows, and stairs. Together with the most important principles of practical geometry (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 168
han thecommon joists. But it is well to have a rule for determining thesize more accurately in extreme cases. 270.—When the bearing exceeds 8 feet, there should be struts,as a and a, (Fig. 202,) well nailed between the joists. Thesewill prevent the turning or twisting of the floor-joists, and… … Fig. 202. upon the unde^ide. When the length of bearing is great, strutsshould be inserted at about every 4 feet. 271.—Single-joisted floors may be constructed for as great alength of bearing as timber of sufficient depth can be obtained ;but, in such cases, where perfect ceilings are desirable,…
Carpentry · Architecture
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
