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
Side by side
Post spacing against beam size
Show a hint
Posts moved from 6 ft to 8 ft apart under the same beam, which is now too small for them.
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
Each 2 ft added between posts costs beam depth; each post removed saves a footing.