One way to complete a home improvement project that involves installing posts in the ground is to embed the posts in concrete. This applies to anything from a mailbox or basketball net to a fence or deck. Embedding the posts in concrete provides a more stable, secure base than you would get from placing the post directly into the soil. One product that you can use for this purpose is concrete tubing from Quikrete.
- Skill level:
Things you need
- Post-hole digger
- Tape measure
- Utility knife
Dig a hole slightly wider than the Quikrete concrete tube with a shovel or posthole digger, going to the depth required for the project.
Pour a 6-inch layer of gravel into the bottom of the hole and tamp it down.
Cut the tube with a utility knife so it's long enough to extend between 2 and 6 inches out of the ground.
Slide the tube into the centre of the hole. Lay a level across the top of the tube. If it's uneven, place a board across the top and lightly tap down on it until it is level.
Back-fill the gap around the tube with soil. Check the tube for level as you do this so you don't throw it out of alignment.
Mix concrete, following the instructions on the packaging.
Pour the concrete into the tube. If you're installing a post, pour about 4 inches of concrete into the tube and place the post into the centre of the tube. Check it for level and fill the rest of the tube. If you're installing pins or brackets at the top of the pour, fill the tube completely with concrete and smooth the surface by dragging a board across the top. Place the pins or bracket into the concrete.
Cut away the tube that extends above the ground after the concrete has cured.
Tips and warnings
- The Quikrete tube should be at least twice as wide as the pillar or post that is being embedded in it and it should be long enough to go beneath the frost line if it's a load-bearing post, such as in a deck.
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