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Deck joist span and cantilever

3860 Views 6 Replies 4 Participants Last post by  carpdad
Building a deck beside a round above ground pool and have some questions. I have my 3 beams set and I'm getting ready to start laying joists. My joists need to cantilever over the beam closest to the pool and I am wondering about max cantilever. When the joist span charts list span are they talking about the span from the inner most beam to the outer most beam or is it the span between inner beam and middle beam, and then middle beam to outer beam? I am trying to calculate my max cantilever. My beams are about 8 feet apart and the outer beam is about 20 feet from the pool.

Also does going 12oc with my joists change the cantilever at all? Thanks in advance. Attached is a drawing of the layout to give an idea.


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Thanks for the response. That document has some real good info. My span from middle beam to the beam I will be overhanging is 9 feet. That is what I go off of when determining my cantilever then correct? Joists 12 oc instead of 16 doesn't change my cantilever at all?
The furthest distance I am looking at is 36 inches. The pool was built into the side of a hill and I got as close as I could when u dug the holes, while still maintaining a solid foundation around the pool.
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