Wilson’s Carpentry and joinery / by John Wilson (1891)
Wilson, John · Manchester [England] : Percy Bros. · leaf 24
t iron head for the top end of principalrafters, and a notch for the ridge. From the detail it will be seen that the boxat the head is so formed that the top ends of the principal rafters are square. A short piece may be fixed on the tie beam to receive the bottom end ofeach strut. Fig. 7. Shows a… … ROOF TRUSS AND D3TAILS OP JOINTS. Fig. 1. Shows a side elevation ol ft truss for a maximum span of 45. Aqueen post truss would answer for a span of this dimension ; as it will be seenfrom the drawing that the common rafters are supported at two places, inaddition to the ends. The 8 bearing allowed…
Carpentry · Joinery
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