Floor decking thickness

BlueBSH

I need to deck an area in an unfinished space just so it can be used as storage right now. The joists are 16" O.C. 2x8's. What is the best thickness to use? the whole house right now is decked with OSB, I think its 23/32? is that too much for storage space or not enough? the rest of the house they have 23/32 osb then a 1/4" sheet of ply overtop of that glued and nailed down

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House Information: Build 1996, 1500 sq ft basement, 1500 sq ft 1st floor, 800 sq ft 2nd floor, 560 sq ft unfinished attic space on 2nd floor. Insulation: Attic blown fiberglass, walls R-19, Basement R-19. HVAC: Trane xc95m fully modulating furnace, single zone, Trane XL20i commiunicating AC unit, TCONT900 Communicating thermostat.

Ian Rogers

From my days as a carpenter we always ran 1-1/4" t&g ply for our subfloors. It's more expensive than osb but hold up much better over time.

BlueBSH

That's gotta be pretty heavy huh? I'd be hulling this up a flight of steps

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House Information: Build 1996, 1500 sq ft basement, 1500 sq ft 1st floor, 800 sq ft 2nd floor, 560 sq ft unfinished attic space on 2nd floor. Insulation: Attic blown fiberglass, walls R-19, Basement R-19. HVAC: Trane xc95m fully modulating furnace, single zone, Trane XL20i commiunicating AC unit, TCONT900 Communicating thermostat.

md2lgyk

I used 3/4-inch Advantech decking when I built my house. It has a 50-year warranty against water damage.

BlueBSH

guess 3/4 would be stronger then 23/32 since its slightly thicker, never saw their stuff though, its resin composit sheets? Any advantages of this over OSB?

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House Information: Build 1996, 1500 sq ft basement, 1500 sq ft 1st floor, 800 sq ft 2nd floor, 560 sq ft unfinished attic space on 2nd floor. Insulation: Attic blown fiberglass, walls R-19, Basement R-19. HVAC: Trane xc95m fully modulating furnace, single zone, Trane XL20i commiunicating AC unit, TCONT900 Communicating thermostat.

GBrackins

50-year warranty against water damage ... what does the osb come with????? I always spec out Advantech and most builders I know use it exclusively

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Gary

"You get what you pay for, and sometimes free costs more!"

BlueBSH

I will have to remember this if we ever get to building a new house. Is the cost relatively close, or is it greater pricewise?

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House Information: Build 1996, 1500 sq ft basement, 1500 sq ft 1st floor, 800 sq ft 2nd floor, 560 sq ft unfinished attic space on 2nd floor. Insulation: Attic blown fiberglass, walls R-19, Basement R-19. HVAC: Trane xc95m fully modulating furnace, single zone, Trane XL20i commiunicating AC unit, TCONT900 Communicating thermostat.

GBrackins

depends on where you are, but pretty much the same

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Gary

"You get what you pay for, and sometimes free costs more!"

ddawg16

23/32 vs 3/4" (24/32)? Hmmmmm....that works out to 1/32" difference.....

I'm doing a 2-story addition right now....my second floor is 1 1/8" T&G.....I questioned it at first...but now....very glad....about par to walking on concrete.

Don't do OSB....it does not do as well as floor sheathing....OSB is better suited to shear walls.

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