Every number here is a working estimate to check with your building authority. Whoever prints this page takes responsibility for what is in it.
Lessons / Beams, posts and cantilevers
Guess first
Span plus cantilever picks the beam
Show a hint
A 12 ft span with a 2 ft cantilever looked up as 12 ft instead of 14 ft.
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
Look up the beam with the joist span plus the cantilever, because that whole load reaches the beam.