Revisions log for Answer #2179
This is the answer to the question How to calculate the maximum size of the gable overhang?
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2022‑09‑14 23:24
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There is no such thing as "area dependence".
You can do a calculation on a cantilevered wooden beam. Put your loads and cross-sections of purlins or whatever is going to be on the roof into the calculation.
The overhang can be made much more, you just need a calculation.
400 mm outreach is allowed without calculation if only purlins/OSB connect outriggers and roof. A 600 mm outreach can be done if the outriggers go "inside the house" I think by 1.5 ... 2.5 times 600 mm. And then only by calculation. And in this further to do the crate from a board 50x100 on the rib will be stupid, and it is not the task of crates.