![]() ![]() Shame to cut down some of those 24' rafters for clear span buildings. But as I said, codes dont apply.We do get some snow here occasionally but not much and not for long. Allowable span tables are provided to simplify the selection of rafter and ceiling joist size for wood roof framing and cold-formed steel framing. Rafter Spans for Douglas Fir-Larch 2 - Ceiling not attached to rafters (R802.5.1(1)). In regard to my old USDA plans, he felt that the spans have been reduced due to the degradation of our current framing lumber and that he'd feel fine with 12' spans 24"OC with our old stuff. Their main concern is general safety and if you're building something big or that they consider potentially dangerous, like say a big open 20'at the eaves hay shed they'll want to come out during construction and check post embedment etc.The inspector I spoke to said current code here would be 10'span 24"OC, 12.5' span 16"OC. They're not climbing any big hills to see if your little cattle shelter is well built. They do come out and look at the finished product in most cases "if it's not too remote". ![]() I have to get a permit but most ag-use only buildings are exempt from code and permit fees. The maximum spans in the table above are for the horizontal distance the rafter can span (NOT. I just checked with my county building dept to see if there had been any recent changes in their ag-use only policys. 2圆 rafter span table Designing with Roof Rafter Span Tables. ![]()
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