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1″ plywood for subfloor

user-110417 | Posted in General Discussion on May 2, 2006 01:07am

My dad is rebuild his home and he wants to know if he should use 1″ or 3/4″ plywood for his subfloors.

The framing crew i work for always uses 3/4″ but he said a contractor friend of his said the 1″ is wort the extra $$$.

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Replies

  1. User avater
    jonblakemore | May 02, 2006 01:46am | #1

    What is he using for joists, what is the joist spacing, and what is the finish floor?

     

    Jon Blakemore

    RappahannockINC.com Fredericksburg, VA

    1. user-110417 | May 02, 2006 01:48am | #2

      2x12 joist on first floor, truss on second floor. Wood floor, maby some tile, no carpet. spacing 16 o.c.

      Edited 5/1/2006 6:49 pm ET by John Bissell

      1. User avater
        jonblakemore | May 02, 2006 02:49am | #3

        For the first floor, 3/4" ply would be sufficient, 1" would be nice.For the second floor I would step up to 1" because you have floor trusses which I assume are spaced 24" o.c. 

        Jon Blakemore RappahannockINC.com Fredericksburg, VA

  2. User avater
    Matt | May 02, 2006 02:51am | #4

    You might want to check on the availability of it.  My guess is that is is gonna be special order.  That alone will add another $ to your $$$.  If I wanted to do something like that, I think I'd be more likely to go with a 2 layer floor. 

    BTW - this is an ongoing debate, but personally I think there is a much better product out there than plywood.  So as not to beat a dead horse, I'm not even gonna metnion the name of it.

    1. rez | May 02, 2006 02:58am | #5

      Seems the increased depth and spacing of joists to efficiently provide the strength for a horse would be cost prohibitive.

       

      be seeing that's some serious dead weight there

      half of good living is staying out of bad situations

    2. DanH | May 02, 2006 02:59am | #6

      Yeah, I'd think two layers of 1/2" would make more sense, with the joints offset, and possibly with glue between them.
      If Tyranny and Oppression come to this land, it will be in the guise of fighting a foreign enemy. --James Madison

      1. User avater
        Matt | May 02, 2006 03:11am | #8

        Actually, I'd still want the first layer to be T&G.

        1. specbuilderli | May 02, 2006 05:08am | #9

          i install modular homes ,and buy them from the best supplier i could find.they have plywood options for subfloors,but when i asked for t&g subflooring the would not do it.so i settled on two layers of 1/2 inch ply screwed down with [hopefully]construction adhesive between.anyone have any experience with these types of systems?i know they make a 1 and an1/8" t&g ply but they don't want to use  this.

          matt

          1. User avater
            Matt | May 02, 2006 02:16pm | #10

            Seems odd that they won't do T&G.

  3. pebble | May 02, 2006 03:08am | #7

    There is the 1 1/8" Advantech. I have seen my local Home Depot stock it. Personally I would go for the 1" or greater.

    Handyman, painter, wood floor refinisher, property maintenance in Tulsa, OK

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