Quick Answer: What Kind Of Plywood For Attic Floor?

How thick should plywood be for an attic floor?

Joist Spacing and Attic Use You need 3/4-inch plywood. The thinner plywood is acceptable when the joist spacing is 16 inches. If you plan to finish the floor in the attic and turn the room into a living space, however, you should always use 3/4-inch plywood.

How thick should OSB for attic floor?

If your attic joists won’t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage, you can install ½-inch plywood or oriented strand board (OSB) in 4-foot-by-8-foot panels over existing 16-inch OC joists.

Can I put plywood over insulation in attic?

Once the insulation is down, you can turn your attic into valuable storage space by covering the floor with plywood. It will also make the attic a safer place in which to walk.

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Can I use plywood for loft flooring?

As Scott mentioned, plywood will probably be fine. I just used 1/2 inch plywood in mine. I would probably recommend you use “real” plywood though rather than the chipboard stuff. It’s a bit more expensive, but also much more durable if you’re going to be walking on it.

How much does it cost to put plywood in attic?

A contractor will charge $550, which includes labor and material, to lay a plywood floor in an area approximately 10-feet square. If you have basic carpentry skills and tools, you can do the job for $190, the cost of the plywood and screws.

Can my attic support a floor?

That begs the question; can my attic support a floor? The answer, in most cases, is a definite yes. Even though it wasn’t put there, the joists supporting your ceiling are quite strong. Putting down flooring won’t stress them any more than the floors in your bedroom, kitchen, or bath.

What thickness plywood can you walk on?

Sizing the Plywood No matter what the spacing is on your ceiling joists, 3/4-inch plywood should be used if you plan on walking on it. If you plan on placing the plywood around the perimeter of the opening or door and using it only to store light boxes or materials, 1/2-inch-thick plywood should suffice.

Can you use MDF for attic floor?

Hellrazor is right, MDF is not rated for flooring. But in addition to plywood you can also consider OSB- same strength as plywood and is likely a little cheaper.

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What type of flooring is best for attics?

Resilient flooring, such as laminate or vinyl, is one of the best choices you can make for attic floors. This type of flooring can soften the sounds when installed over an underlayment.

Can you put insulation on top of attic floor?

A. Without removing the flooring, you have the option of blowing loose-fill insulation (fiberglass or cellulose fiber) over the top of the floor. Another idea would be to roll out fiberglass batts on top of the floor. Butted tightly together, they would improve the thermal performance of this part of your attic.

How do I walk in my attic with blown insulation?

Unless you can safely traverse the attic in the truss webbing or on boards suitable to crawl/walk on, its best to stay out. If you find blown in cellulose and can’t see all areas, say so and move on. No, it would be unsafe to enter such an attic.

Do I need permission to board my loft?

“ You need planning permission to have loft boarding installed” Having loft boarding installed for storage does not require planning permission. Planning permission is only required for larger projects or if you’re looking to convert your loft for living extension purposes.

How thick should loft Flooring be?

Standard loft boards come in two different sizes; 2,400mm x 600mm and 1,220mm x 320mm; both of which are 18mm thick. Remember to make sure that the boards you decide on will actually fit through your loft hatch!

Is my attic strong enough for storage?

As long as they are not damaged, the joists should be strong enough to allow you to move around in the attic for an inspection and to provide storage for typical boxed items. The joists should support your weight, but the space between them almost certainly will not.

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