Can you use pressure treated lumber for floor joist?

Can you use pressure treated lumber for floor joist?

Yes, PT lumber can be used for framing, including floors. The allowable stresses of PT lumber are lower than non-treated lumber, which means it can not span as far. Also, PT lumber is corrosive, so connections need to be such that they resist corrosion.

What type of wood is best for floor joists?

Lumber Grade Lumber graded as #2 is the most common choice for floor joists and other framing lumber. It has more knots and defects than higher grades, but usually not enough to cause significant loss of bending strength.

Can you use treated wood for subfloor?

Agreed. Under the IRC this 19% or less moisture content lumber is called kiln-dried-after-treatment lumber and is perfectly acceptable to be used in structural sheathing, subflooring, or framing. It’s a building code requirement to use treated lumber where wood contacts masonry.

Is treated lumber safe for indoor use?

The simple answer is pressure-treated lumber can be used in any interior application except cutting boards and countertops. The reason lumber is treated is to protect it from exterior elements that might cause rot, decay or termite infestation.

Do floor joists have to sit on a beam?

The joists themselves should have at least 1-1/2 inches of good bearing on the sill plate, or 3 inches on masonry. Ideally, if a load-bearing wall runs parallel to floor joists, then it should sit directly over a beam or a joist supported by a load-bearing wall below.

How far can a 2×10 floor joist span without support?

In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet.

Are 2×6 OK for floor joists?

2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards. To give you a general idea though, floor joists are sized to support 40 pounds per square foot of “live” load (moving weight) or 10 psf “dead” (stationary) load.

How long will pressure treated wood last in the ground?

It depends on the climate, the type of wood, its uses, and how well it’s maintained. While pressure treated poles can stay up to 40 years without any signs of rot or decay, decks and flooring might only last around 10 years.

What kind of wood should be used for floor joists?

Generally, building codes require pressure-treated or naturally durable wood for the following applications: Joists or the bottom of structural floors without joists that are within 18″ of exposed soil. Beams or girders closer than 12″ to exposed soil.

Is it OK to put pressure treated wood on concrete floor?

This treated lumber resists wood rot as it’s immune to damage from moisture. This treated lumber is bolted to the foundation and the floor joists typically rest on it. Furthermore, can you put pressure treated wood directly on concrete?

What do you need to know about pressure treated wood?

Generally, building codes require pressure-treated or naturally durable wood for the following applications: Joists or the bottom of structural floors without joists that are within 18″ of exposed soil

Do you have to use pressure treated wood for shed floor?

Yes, pressure treated lumber is the best option for your shed floor. Keep in mind, however, that this doesn’t make it a requirement. You can still use non-pressure treated wood. The problem you could run into if you don’t use pressure treated wood for your shed floor is how long it will last..