There are several ways to set deck posts; we recommend attaching the posts to concrete footers above the ground. This helps to prevent wooden posts from rotting. Set footers a minimum of 6” below the frost line for your area to prevent movement during freezing temperatures.
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The pergola will dimension 11’x 11.5′ on center of post with 6×6 posts (4 posts), tied together with sandwiched 2×12 beams. I’ve laid out footer locations and am about to dig for 8″ sonotube forms.
Thereof, How much concrete do I need to set a deck post?
The general rule of thumb when setting a post is that the depth of the post’s hole needs to be 1/3 to 1/2 of the actual above-ground height of the post. So, six-foot-high fence posts ideally need to be buried three feet into the ground. The diameter of your post hole should be three times the diameter of your post.
Also to know is, How do you anchor a 6×6 post to concrete? – Hold your drill plumb. Use a drill with a hammer drill bit to install a concrete sleeve anchor into the center of the concrete footing.
– Don’t over tighten the bolt. Install the Adjustable Post Base to the sleeve anchor and tighten the bolt to secure the attachment.
– Place your foot behind the post when nailing.
Subsequently, question is, How do you size a sonotube? The rule-of-thumb is to use a tube diameter 3 times the post width, therefore use a 12” diameter Sonotube for a 4×4” post.
Also, How do I know what size sonotube to get?
The rule-of-thumb is to use a tube diameter 3 times the post width, therefore use a 12” diameter Sonotube for a 4×4” post.
How deep should a footer be for a support post?
Footers must be a minimum of 24 inches deep.
How much quikrete does it take to set a post?
Fast-Setting Concrete Mix (Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground). The calculator will indicate the number of 50 lb. bags of QUIKRETE® Fast-Setting Concrete you need.
How deep should Sonotubes be?
I dig my holes 2 feet in diameter so that I have some flexibility if I need to slightly adjust the placement of the tube. Also, the wider the hole, the easier it is to remove dirt as I dig deeper. When I reach our local frost depth of 48 inches, I add about 6 inches of stone to the bottom of the hole.
How deep should footings be?
Depth: Footings should extend to a minimum depth of 12 inches below previously undisturbed soil. Footings also must extend at least 12 inches below the frost line (the depth to which the ground freezes in winter) or must be frost-protected. Width: Footings should have a minimum width of 12 inches.
How do you anchor a 6×6 post?
How deep should footings be UK?
If you’ve got a complicated area to estimate you can build up the calculations by adding different shapes together. The depth of concrete you need will depend on the use: footings for extensions, for example, will need to be at least 200mm thick, while around 100mm should be deep enough for a shed base.
How far apart do deck posts need to be?
8 feet
Should posts be set in concrete?
First rule, gang: Do not set wooden posts in concrete. Look, no matter what preventative steps you take (and I’ll get to those), eventually wooden posts rot, and eventually you’ll have to set new ones. Not only does burying them in concrete make for more work down the line, it actually can speed up the rotting.
How long does it take for quikrete to set?
20 to 40 minutes
What size post should I use 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..
What size footings do I need?
You can look up the recommended footing size, based on the size and type of house and the bearing capacity of the soil. As you can see, heavy houses on weak soil need footings 2 feet wide or more. But the lightest buildings on the strongest soil require footings as narrow as 7 or 8 inches.
Why deck posts should not be set in concrete?
When concrete is poured around a deck post in this way, the post will rot due to moisture buildup by the soil. Concrete tends to absorb moisture and wood expands when it gets wet, so these two factors combined will result in the wood breaking the concrete.
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