Can I cantilever all four sides?

Started by markert2523, May 18, 2009, 06:21:10 PM

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markert2523

One more question for the modern manshed.

Can the floor deck (2"x8" joists) of my 12x16 manshed rest on two parallel beams of 14' length and spaced 10' apart?

I know it's good to cantilever the ends a little over the beams in the direction the joists are running, but is it ok to have the "sides" hanging over a foot on each side.  Maybe use double rim joists on the 16 footers?

Does any of this make sense?

Thanks

MountainDon

Anything can be done, if it's engineered correctly.

If I understand what you want to do, that is, have the house/shed floor extend past the beams/girders that support the whole shebang in both the width and length directions, how do you envision supporting the structure out beyond the ends of the girders/beams? It's easy to extend the floor joists over the beams a little, but I don't follow the other direction.  ???

Just because something has been done and has not failed, doesn't mean it is good design.


markert2523

Sorry Don, I think I'm confusing myself!

I guess what I meant to say is it going to be ok to cantilever the "beams" a foot or so on the sides.  Kind of like this:



I want the beams to cantilever over the end piers 12" so the piers are not as visible.  The beams will be 16', not 14'.

Make more sense?

MountainDon

Quote from: markert2523 on May 18, 2009, 07:16:54 PM


I want the beams to cantilever over the end piers 12" so the piers are not as visible.  The beams will be 16', not 14'.

That is done frequently.  I thought you might be trying some sort of 'sky hook' technique. 

Just because something has been done and has not failed, doesn't mean it is good design.