How do you layout plywood on floor joists?

10 Answers

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  • 2 weeks ago

    Long side (and graining) at right angles to the joists. And make sure the boards are staggered.

  • 3 weeks ago

    3/4 Inch Plywood Subfloor Preparation: Joist Installation. The second floor of this house is built with 2 x 10 wood I-joists (joists that resemble steel ...

  • 3 weeks ago

     measure the room, lgth width, use heavy pencil and the T to make clean lines for cutting,careful cuts are necessary to lay them tight against the  horizontal  plate  and the vertical   2 x 4s go up to the ceiling,,a bigole T square,a long table, help.a good eye is an asset too,cut the plies to fit snug,,no buckles,drill pilot holes on the plies about a ft apart,,wood screws go into these,,start from the center, make sure each section is flat n snug by walking on them,,screwem down,chinese made anything often breaks,the threads strip on the phillips head screws,american made are better,the brass colored ones are good for this type of woodwork

  • 3 weeks ago

    put then on the top then screw them down 

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  • gerald
    Lv 7
    3 weeks ago

    You make them square at the ends with the joist and work away from the first board leaving room to have a decent cut to fill in not tiny bits at ends or sides 

  • garry
    Lv 4
    3 weeks ago

    what a dumb question , try using a hammer and nail , preferably with the grain away from you .

  • Anonymous
    3 weeks ago

    stagger them gives most strength and eveness on the floor.  The plywood supply store could have told you that. T&G plywood 5/8" plywood for regular flooring and 1" thick if you are going to float concrete to lay floor tiles.

  • Barry
    Lv 6
    3 weeks ago

    In the UK we use flooring quality chipboard aka particle board. Plywood will flex unless it's very thick and if it's very thick it will be very expensive. Flooring chipboard is durable, water resistant and locks together for stability. See link for tutorial.

  • Edwena
    Lv 7
    3 weeks ago

    Your 8' sheets of plywood should match the joist spacing. 16", 24" if they are close enough.  If you get off, cut and screw a couple of stiffeners between the joists and screw the plywood to the stiffeners. Stiffeners are good to have, so you can preplan and put them in before you do the plywood.  Now, don't put the stiffeners where you are going to raise the plywood up through the joists.  You will block yourself out.  And have a strong back.  

  • Anonymous
    3 weeks ago

    Long edge at right angles to the direction of the floor joists. It is not really that important as plywood spans in both directions, but more plies span down the length. Needs noggins so that all edges are supported and joins should be made on top of joists. You should get 6 or 4 joists per sheet length depending on how they are spaced, but you may need to trim to the nearest. Stagger the sheets by 4 ft to make a bond pattern.

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