Full Answer
How much weight can a 6x6 post support?
The capacity of a 12' tall 6x6 post varies greatly as described above. For maximum design load you should be safe using 400 psi, that's about 12,000 lbs. But you need to add up the loads based on values that go with your allowable stress. S Max load bending on steel tube.
How much weight can a 6x6 hold?
I have always assumed the safe load capacity of a 6x6 to be approx. 10,000 lbs, Although I'm sure they could handle alot more, really it depends on the geology/cement.
What is the height of a post post?
Post heights are based on standard precut stud heights and associated top plate heights. Wall height is nominal height plus 1 1/8". Effective post lengths, l e, are the actual wall height minus the thickness of (3) 2x plates (4 1/2").
What is the difference between a 4×4 and 6×6 post?
While a 4×4 under 5-feet will do the same job essentially as a 6×6, the more solid timber resists bending and twisting much better. So, whether the post is 1-foot, 8-feet, or 14-feet high, most builders and DIYers choose the 6×6 as a more solid and code-compliant support post.
How much weight can a 3 foot 2 post hold?
How to determine support capacity of a deck post?
What is Better, 4×4 or 6×6 for Deck Railing Posts?
What is the dead load of a deck?
Why is a 4x4 more susceptible to twisting and bending?
Where are deck support posts placed?
Where do cap brackets sit on a post?
See 2 more
How much weight can a 3 foot 2 post hold?
The load capacity of a 3-foot #2 grade 4×4 is 17,426 pounds, and a similar 6×6 is 20,834 pounds or 16% better. However, an 8-foot 4×4 supports 6468-pounds and 2339-pounds at 14-feet, while a 6×6 is 18032 and 10550-pounds respectively – or 64% and 78% more load capacity. So, for posts 3-feet and shorter, it’s a matter of preference, above 3-feet use 6×6.
How to determine support capacity of a deck post?
Determining the support capacity of a post involves several factors. The type of wood and length of post influence how much it will support before snapping. Another factor is the tributary area of the deck being carried by a post.
What is Better, 4×4 or 6×6 for Deck Railing Posts?
The railing or guard posts must be nominally a minimum of 4×4 and fastened perpendicular to the rim joist with (2) 1/2″ through-bolts and washers. The 4×4 should not be notched to the deck.
What is the dead load of a deck?
The dead load is commonly considered to be 10psf and the live load 40psf, resulting in the design load of 50 psf.
Why is a 4x4 more susceptible to twisting and bending?
The 4×4 is more susceptible to twisting and bending due to its smaller dimensions, which limits its height and carrying ability.
Where are deck support posts placed?
Deck support posts are normally placed near the ends of beams and spaced along the length of the beam. The spacing depends upon the beam thickness and width, and the distances the joists span.
Where do cap brackets sit on a post?
Caps sit on the post and the beam sits on and inside the upper part of the cap. Two section brackets may be installed before or after the beam is placed on the post, and can adjust to different beam thickness without bending.
How much can a 6x6 post support?
As this screencap from it will tell you, a 6x6 post can support 20,000 even when 12' high— if cross-braced and secured properly.
How much weight can a 6x6 hold?
I have always assumed the safe load capacity of a 6x6 to be approx. 10,000 lbs, Although I'm sure they could handle alot more, really it depends on the geology/cement.
How much does a deck weigh?
I did a little research, I think you're off on your estimated support weight. Most decks are built to a 50 pounds per square feet, and high capacity decks are built to 70 psf. That puts you at eiter 9250 pounds or 12950 pounds with 185 sq feet. These should be the numbers you base the amount of posts on.
How many verticals to cut 16' span?
personally, I would use six verticals in order to cut the 16' span in half and bolt two 2x10's to the perimeter. Bolt the crossbracing too.
How much compressive strength is a 6 bye 6 hemfir post?
A six bye six hem-fir post is good to about 26,000 pounds compressive strength. Ron
Is 6x6 word good?
I think 6x6 word work fine but not look as nice. It looks to me you need some sheer strength though if you get winds or are going to have any kind of weight up there.
How much weight can a 3 foot 2 post hold?
The load capacity of a 3-foot #2 grade 4×4 is 17,426 pounds, and a similar 6×6 is 20,834 pounds or 16% better. However, an 8-foot 4×4 supports 6468-pounds and 2339-pounds at 14-feet, while a 6×6 is 18032 and 10550-pounds respectively – or 64% and 78% more load capacity. So, for posts 3-feet and shorter, it’s a matter of preference, above 3-feet use 6×6.
How to determine support capacity of a deck post?
Determining the support capacity of a post involves several factors. The type of wood and length of post influence how much it will support before snapping. Another factor is the tributary area of the deck being carried by a post.
What is Better, 4×4 or 6×6 for Deck Railing Posts?
The railing or guard posts must be nominally a minimum of 4×4 and fastened perpendicular to the rim joist with (2) 1/2″ through-bolts and washers. The 4×4 should not be notched to the deck.
What is the dead load of a deck?
The dead load is commonly considered to be 10psf and the live load 40psf, resulting in the design load of 50 psf.
Why is a 4x4 more susceptible to twisting and bending?
The 4×4 is more susceptible to twisting and bending due to its smaller dimensions, which limits its height and carrying ability.
Where are deck support posts placed?
Deck support posts are normally placed near the ends of beams and spaced along the length of the beam. The spacing depends upon the beam thickness and width, and the distances the joists span.
Where do cap brackets sit on a post?
Caps sit on the post and the beam sits on and inside the upper part of the cap. Two section brackets may be installed before or after the beam is placed on the post, and can adjust to different beam thickness without bending.
