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.
2x6 floor support ratings.
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.
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.
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.
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.
The smooth holes are 2 1 2 from the ends of the 2x5 s.
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.
Live load is weight of furniture wind snow and more.
A uniform load rating on a beam can easily be translated into what an equivalent maximum point load can be.
But larger is not always better when builders are constructing a home or adding a room addition.
The wooden joists or beams over your garage help hold your roof in place.
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.
The species of lumber size of lumber and the load it carries.
If you need a storage area above your garage strong ceiling joists are necessary to support the added weight.
2 grade of douglas fir are indicated below.
1 ft 0 3048 m.
For upper level decks 2x10 is recommended as the minimum size to use for strong guard post connections.
I can check the metal plates for bearing and tension and the net section of the 2x6 for tension and the bolt for shear.
For conventional guardrail post installation bolted to the side of the framing larger framing will provide more strength in the rails.
Is the floor sitting on the ground or are you raising it up.
2x6 joists should only be used on ground level decks that do not require and will not provide for any guards.
1 psf lb f ft 2 47 88 n m 2.
The span of a beam is dependent on a few variables.
Save yourself a lot of money that way.
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.
If it is sitting on the ground then you can go ahead and use 2x4s.
