Often asked: How To Put Plywood In Attic?

Is it OK to put plywood in the attic?

An attic can be floored with 1/2″ CDX plywood, if it is being used only for storage. However, the same can’t be said if you are planning on using the space as a living space. In that case, you will need to use 3/4″ thick plywood. The building code allows for the use of OSB in place of plywood for subflooring.

How much does it cost to plywood an 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.

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Can I put a subfloor in my attic?

Laying a subfloor in the attic is very similar to laying a subfloor in any other kind of room except that an attic has a few special considerations. Before laying a subfloor, seal any air leaks and insulate between the joists, if possible.

How thick should plywood be for attic storage?

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 much weight can attic joists support?

Attic Joists for Live Loads In many cases, ceiling joists for dead loads are designed to carry 10 pounds per square foot (psf), as opposed to the 40 or greater psf that live-load joists must carry.

How much does it cost to put floor in attic?

Attic Flooring Cost The cost of attic flooring ranges from $3,000 to $16,000, depending on what you already have. The existing floor joists may not support weight, so you’ll probably need most of these services: Price to replace floor joists: $1,000-$10,000. Cost to install subfloor: $500-$800.

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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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.

How do you know if you can finish your attic?

What to Consider Before Finishing an Attic

  1. Have at least 7 feet of vertical clearance in the majority of the room, be a minimum of 7 feet wide and have at least 70 square feet of space available.
  2. Be accessible by a full-size staircase.
  3. Have another exit in case of an emergency, typically an easily accessible window.

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.

How do you know if attic can be converted?

Roof Rafters or Trusses Another factor that determines whether you can convert your attic is the presence of roof rafters vs. roof trusses. Traditional rafters look like triangles; trusses look like triangles with smaller triangles inside of them—the boards forming these small triangles are called chords and webs.

How can I cover exposed insulation in my attic?

The good solution for this is a house wrap material (often referred to by the popular commercial brand Tyvek) which allows vapor to pass through while blocking water itself on the outside of the home. You can also put up a thin board, plywood, or even drywall, if the goal is simply to prevent accidental contact.

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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 I store things in my attic?

It is safe to store items in your attic as long as you are careful. Before you store anything in your attic, consider how fragile the items are. Attics, especially an Arizona attic, can feel like an oven during the summer.

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