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jeremyd_gw

Need help with DIY wood floor for shed

JeremyD
11 years ago

I'm making a 16'X24' shed and I need some advice for the floor joists and beams.
(All lumber will be ground-contact pressure-treated southern pine, probably grade 2)
I'm thinking of making 3/4 inch pressure-treated plywood floor on 2X8 joists spaced 16" apart with a 7'9" span, supported by 16' 4X8 beams spaced 8 feet apart, which would in turn be supported by 1 foot wide square concrete pillars set 2 feet in the ground at the ends and middle of the beams for a beam span of 8 feet.

Would this keep the floor from sagging?
Not enough?
Overkill?
The heaviest single objects will be a large generator, and a large bookshelf full of books, although I may get a riding mower later.

This post was edited by JeremyD on Fri, Apr 5, 13 at 23:03

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