# Quick Answer: Can I Use 4×4 Posts For My Deck?

## How far can a 2×6 span without support?

How far can a 2×6 Rafter span without support.

The table states that 2 X 6 rafters spaced 16 inches on center (o.c) can span a maximum distance of 13 feet 5 inches.

Another option are 2 X 8 rafters spaced 24 inches o.c..

## How far can a 2×6 span on a deck?

24 inchesDecking boards span from joist to joist. If you use 5/4 decking, joists must be no farther apart than 16 inches. Decking made of 2x4s or 2x6s can span up to 24 inches.

## How far can you span a 2×6 beam?

When supporting joists that span 12 feet with no overhang beyond the beam, a double ply beam can span in feet a value equal to its depth in inches. For instance, a double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on.

## Are 3 2×6’s as strong as a 6×6 post?

One 6×6 will be 22% stronger than three 2×6’s. This assumes, of course, that the long side of the thinner boards is vertical, and that we’re talking standard dimensional lumber where a 2×8 is really 1.5×7. 5, etc. Beam bending strength is proportional to the width of the beam, but to the cube of the height.

## How many 4×4 posts do I need for a deck?

As a general rule, if the support posts are spaced no more than 10 feet on center, all you will need to use are 4- by 4-inch posts. Most local building codes permit 4-by-4 posts 10 feet on center for all but multistory decks..

## How much weight can a 4×4 post support?

about 420 poundsWhat I figured if the weight is distributed evenly is that each 4×4 post is supporting a max of about 420 pounds.

## How much weight can a pressure treated 4×4 hold vertically?

around 5000 lbsWith the post in the vertical position, total height of 9 feet it is estimated to be around 5000 lbs with a perfect weight repartitions on both 4×4 ends. This does not allow for twist and side loads for posts above 4 ft. if you are building a deck or shed.

## How far can a 4×4 span without support?

A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists. For best results, refer to our wood and composite deck joist span table.

## Is a 4×4 strong enough for a swing set?

Yes, a 4×4 that is 20′ long will work. A 4×4 that is 12′ long will support about 4,000 lbs. … The metal braces look strong enough, (those are fillet welds which will hold about 1,000 lbs. per inch), but the entire swing set will want to “parallelogram” on you (with enough force).

## Are 2×6 strong enough for deck joists?

2×6 joists should only be used on ground-level decks that do not require, and will not provide for, any guards. … Most decking is not strong enough to support longer spans than 16″. Some builders reduce joist spacing to 12″ on center to strengthen the deck frame or to increase maximum allowable joist spans.

## Should you use 4×4 or 6×6 deck posts?

4×4 post will be fine. I have built many decks for new homes with them. 6×6 is more sturdy of course and will not twist as easy, but for structure purposes, 4×4 will be fine. I would just not go more then 10′ apart with them.