The American house-carpenter; a treatise on the art of building, and the strength of materials (1873)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York : J. Wiley · leaf 296
, the square root of which is 42-37, and thesquare root of 42-37 is 65, the required depth. This multi-plied by 0-6 equals 3-9, the required breadth. These roofbeams may therefore be 4 by 6$ inches. FRAMING. 281 384.—Five examples of roofs are shown at Figs. 234, 235,236, 237, and 238. In Fig. 234,…
Carpentry · Architecture
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