Things You'll Need
2 posts, 6-inches by 6-inches, 10 feet long
Post hole digger
Boards, 2-inches by 4-inches
1 galvanized pipe, 3-inches in diameter
Concrete or cement mix
Swing with chain and threaded links
The appeal of a swing is almost universal. However, most swings are designed to support the weight of children and are incapable of carrying the load when an adult decides to join in the fun. To set the poles for a swing heavy enough to support larger bodies, dig your footings deep enough to support the additional weight and use larger, sturdier posts.
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Assembling the Frame
Select two straight, 6-inch by 6-inch posts, 10 feet long. Measure 6 inches from the end of each post and mark the center, drawing a line from side to side.
Bore a hole into the post using a 3-inch hole saw. Make sure the centering bit is positioned on the mark. Use a hammer and wood chisel to chip away the wood inside the 1 1/2-inch-deep hole.
Dig two post holes 117-inches apart. Make each hole 24 inches deep and 12 to 14 inches across. Stand one post into each hole.
Place the heavy-duty pipe between the posts, fitting the ends into the holes created by the hole saw.
Installing the Swing
Position a 2-inch by 4-inch board longer than 10 feet across the top of the two posts. Drive one, 3-inch treated deck screw through it into the top of each post to keep the pipe in place. This will be removed once the concrete dries.
Fill each hole with dry cement mix. Add water and mix until the cement is the consistency of oatmeal. Use a level to adjust the poles until the bubble is centered in the indicator. Allow the concrete to harden overnight.
Attach a diagonal brace at a 45-degree angle to the front of the left post. Attach another brace to the back of the right post.
Wrap the chain of your swing around the pipe and fasten it back to itself with a threaded chain link at the desired height. When the concrete is completely dry, remove the braces and fill the top of the hole in with dirt.