For questions involving the use of lumber as a construction material.

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How can I replace this roof deck

So my friend has a 20 x 20 roof deck that is laid on top of a concrete roof. The rood is pitched an there is drainage at the corner. The current deck is about 8 years old and is curling, splitting and ...
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Costruction specs for cabin

Building a simple cabin 20 x 30 feet single story with gable roof. What size should the ceiling joists and roof rafters be? Roof rafters run across the 20' span.