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Cattle Boards
Beginners Board
Building a lean to roof
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<blockquote data-quote="BFE" data-source="post: 1640555" data-attributes="member: 28532"><p>My dad's machine shed has 20' lean to's with the posts spaced 20' apart so we can pull large equipment in and out for the sides as well as the ends. It's built with 12-14" laminate rafters, I'll have to look to tell you spacing and the rafter size for sure.</p><p></p><p>I'm going to say that 2x8 lumber spanning that distance is not sufficient. The old rule of thumb is 1" of 2x lumber per foot of unsupported span, so 2x10 for 10' span, 2x12 for 12' span and so on.</p></blockquote><p></p>
[QUOTE="BFE, post: 1640555, member: 28532"] My dad's machine shed has 20' lean to's with the posts spaced 20' apart so we can pull large equipment in and out for the sides as well as the ends. It's built with 12-14" laminate rafters, I'll have to look to tell you spacing and the rafter size for sure. I'm going to say that 2x8 lumber spanning that distance is not sufficient. The old rule of thumb is 1" of 2x lumber per foot of unsupported span, so 2x10 for 10' span, 2x12 for 12' span and so on. [/QUOTE]
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Building a lean to roof
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