FAQ: Can Pressure Treated Wood Be Used In Basement?

Basement Masonry Walls Pressure-treated wood is required whenever you attach framing lumber or furring strips directly to concrete or other exterior masonry walls below grade. Because basement walls are hidden behind drywall or other wall covering materials, the wall framing members are not exposed to light and air.

Is pressure-treated wood safe for basement?

We get this question a lot. The simple answer is pressure-treated lumber can be used in any interior application except cutting boards and countertops. Other than those examples, there would not be a need to use pressure treated lumber indoors.

What kind of wood should I use in my basement?

Use high-quality 2″ x 4″ lumber when framing your basement, and choose pressure-treated wood for the bottom plate of framing. The bottom plate of lumber will be exposed to moisture from the concrete floor, so using treated wood for that section is crucial.

Is pressure-treated wood OK to use indoors?

It can be used for most indoor purposed except cutting boards. Some indoor projects for which borate treated wood is used are interior trim, studs, sill plates, joist, rafters, and trusses.

Does pressure-treated wood react with concrete?

Wood in direct contact with concrete, and the dampness often found there, will rapidly decay. To avoid this, use pressure-treated lumber. This indicates that the wood contains a quarter of a pound of preservative per cubic foot, which is sufficient for use against exposed concrete, outdoors as well as in.

Can I put deck boards on concrete?

An existing concrete patio will make your deck installation much easier and faster, and you can install your deck directly onto the concrete. You will want to account for water drainage and material expansion/contraction, so it is best to place boards called ‘sleepers’ underneath the deck.

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Can you use pressure treated wood for wall studs?

You can use pressure-treated wood for framing. However, pressure-treated lumber costs much more and does include potentially toxic chemicals. Thus, pressure-treated wood is only recommended for outdoor applications and where framing touches the foundation.

Do I need to use treated wood on basement floor?

Pressure-treated wood is required whenever framing lumber or furring strips are attached directly to concrete (below-grade) exterior walls, or if used in any way that comes into direct contact with concrete–such as as a vertical wood post or column resting directly on a concrete floor.

Is pressure treated wood safe?

Is Pressure-Treated Wood Safe? Yes, pressure-treated wood is safe for use in everything from raised garden beds to children’s playhouses. Before 2003, pressure-treated lumber was often treated with chromated copper arsenate (CCA), a preservative containing some amount of poisonous arsenic.

Is pressure treated wood fire resistant?

Q: Is “regular” pressure treated wood (CCA, ACQ, MCQ, etc) fire retardant or fire resistant? A: No. Standard pressure treated wood is generally intended for use in exterior applications or even in water.

Do termites eat pressure treated wood?

Even pressure-treated wood and naturally durable woods are susceptible to termite damage and infestations. That’s because termites can tunnel over treated wood easily to get to untreated wood or other cellulose-containing substances in a home.

Can I use pressure treated plywood as subfloor?

Don’t put it in as a subfloor (PT Plywood). Use regular floor sheathing. There is too much shrinkage to be used as a proper subfloor base, no matter what kind of material you plan on installing for your finished floor, carpet, tile, wood floors; You WILL have problems if you use it there.

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How long will a treated 4×4 last in concrete?

A treated 4×4 will last 20 to 25 years in the ground if the conditions in the soil and climate are favorable. That number could increase to 40 to 75 years if you install the treated 4×4 in a cement ring rather than the soil. There are a few factors that influence how long the 4×4 can last in the ground.

Should pressure treated posts be set in concrete?

Simply setting the posts in concrete does create a condition that will accelerate rot in the bottom of the posts. With pressure-treated posts, the rot will be slow. Concrete should be poured around the post – no concrete under the post.

How long will a 6×6 treated post last in concrete?

A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don’t let the PT post come in contact with the ground.