- How much weight can a floor hold per square foot?
- Can a floor support 1000 pounds?
- How much weight can a 10x10 floor hold?
- Can my floor support 2000 pounds?
- How much weight can a 2x12 hold?
- How much weight is too much for floor?
- What weight can joists support?
- How much weight can a 2x10 joist hanger hold?
- How far can you span a 2x10?
- How much weight can a 2x12 joist hanger hold?
- How far can I cantilever a 2x10?
- How do I know how much weight my floor can hold?

The International Residential Code, on which most local building codes are based, requires that floors in non-sleeping rooms must support a minimum live load of 40 pounds per square foot, and floors in sleeping rooms must be able to handle a live load of 30 pounds per square foot.

Most of us don't know how long our floor joists are. Let's say you have a three foot wide safe that weighs 1,000 pounds, and your floor joists span 12 feet (which is typical). This three foot by 12 foot section of the floor was designed to safely carry a live load of 3 x 12 x 40 PSF, which equals 1,440 pounds.

Floors are usually designed for a nominal 30psf to 40 psf live load. Example: a 10x10′ room designed for 30 psf can handle 3,000 pounds of people, evenly distributed across it.

Depends on how over the minimum the original construction was designed to, but would need to be at least 60 PSF to for a 2,000 pounds load concentrated over a 60"x80" area. Over a 12' span, you would need to have at least 2x8s installed at 16" on center to support 60 PSF.

approximately 2,100 poundsA 2x12 can hold approximately 180 pounds per foot or approximately 2,100 pounds in total.

Floors in designated bedrooms must support up to 30 lb. per square foot. Non-sleeping rooms have floors that can handle up to 40 lb. per square foot.

That means the joists can support a minimum of 40 pounds per square foot live load. Though, by consulting the 50 pounds per square foot live load/10 pounds per square foot dead load table, you can see the joists' span would need to be reduced to 11 feet 11 inches to support heavier weight safely.

Joist Hanger Vertical CapacityJoist SizeMin Capacity lbs2x64002x85002x106002x12700

Douglas fir 2-by-10 joists graded as "Structural Select" allows joist spans up to 21 feet for a live load of 30 pounds per square foot when spaced 12 inches apart, 19 feet 1 inch for 16 inch spacing and 16 feet 8 inches for 24 inch spacing.

Straight hangers are designed to hold a joist at a 90-degree angle, angled hangers are usually designed for 45-degree angles....Joist Hanger Vertical Capacity.Joist SizeMin Capacity lbs2x64002x85002x106002x12700

Joist Cantilevers According to the new span tables and IRC provisions, cantilevers can extend up to one-fourth the backspan of the joist. This means that joists, such as southern pine 2x10s at 16 inches on-center, spanning 12 feet are allowed to cantilever up to an additional 3 feet (see illustration, below).

Multiply your living room's square footage by 40 pounds per square foot, and you'll have the minimum safe live load of the space. The average US living room measuring 12×18 or 216 square feet puts the minimum allowable live load of the typical living room at 8,640 pounds.

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