2x6 Floor Support Ratings

Maximum floor joist span for no.

2x6 floor support ratings.

Fewer posts on upper level decks are typically more desirable to the occupants and this drives the use of larger framing materials for longer spans. If you need a storage area above your garage strong ceiling joists are necessary to support the added weight. 1 ft 0 3048 m. A uniform load rating on a beam can easily be translated into what an equivalent maximum point load can be.

With an evenly distributed live load of 30 psf which the tables show the floor is able to support the total weight on the floor would be about 3 360 pounds. 1 psf lb f ft 2 47 88 n m 2. Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. The span of a beam is dependent on a few variables.

The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example. But larger is not always better when builders are constructing a home or adding a room addition. For example a floor joist at 16 spacing s that can carry 53 pounds per linear foot would translate into a 318 pound single point load at its center. It is a wierd connection the metal plates are on the 2 sides of the 2x6 top and bottom and the bolt is about 7 long through the end of the 2x6 s.

Dead load weight of structure and fixed loads 10 lbs ft 2. I would go for 2x6 if the center of the joists won t be near the ground or on it. Live load is weight of furniture wind snow and more. For upper level decks 2x10 is recommended as the minimum size to use for strong guard post connections.

The wooden joists or beams over your garage help hold your roof in place. This is what we have done with our coup and our shed was built that way as well. The smooth holes are 2 1 2 from the ends of the 2x5 s. Save yourself a lot of money that way.

The species of lumber size of lumber and the load it carries. Is the floor sitting on the ground or are you raising it up. Increasing the total weight on the floor to 4 480 pounds however results in a live load of 40 psf which is beyond the floor s load capacity. If it is sitting on the ground then you can go ahead and use 2x4s.

If you have an attic over your garage these joists also bear the load of your attic flooring and any materials you store in the attic. 2 grade of douglas fir are indicated below.