Every number here is a working estimate to check with your building authority. Whoever prints this page takes responsibility for what is in it.
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What blocking is for
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A guard post bolted to the rim with no blocking behind it.
Every number here is a working estimate. Check it with your building authority.Turn JavaScript on to work the lesson. The drawing shows how it starts.
The rule this lesson teaches
Blocking stiffens the frame and backs butt joints, border mitres and guard posts.