Have a look at four different ways on how to build a treehouse from the perspective of someone who built one that lasted more than 20 years.
Keeping it simple can make the DIY treehouse easy to build and it won’t break your wallet either.
Includes ways to minimize damage. The final two easy tree houses don’t need big branches or two trees and one you build right around the truck of a single tree.
Read about four easy to build a DIY treehouse for your kids. A tree house is a special place and building one with your kids is an experience you won’t forget.
They are so much fun and will last for years if they are made right. Just make sure you give the kids some time up there too.
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The Tree House was started in 1970. Using some “borrowed” lumber salvaged during a remodeling project, the first platform was built in a 113-year-old elm tree seven feet off the ground.
A rope for a tire swing was placed over a branch at the heart-pounding height of 30 feet, put there by an 11-year-old kid who was sure he was going to fall.
Over the next few years, the tree house grew. First sides were added, then a roof into which a trapdoor was cut. More sides and another roof made it bigger and better.
Another trap door was added and railings turned the roof into a lookout tower platform.
Eventually, the lookout tower gained its roof and the bottom half of the sides were closed in. Standing on the top floor, you looked down on the peaks of single-story houses.
That tree house became “the” goto place for fun in the neighborhood and at times more than 10 kids were up there.
Along came Dutch Elm Disease and trees died all over the neighborhood–but not the tree house tree.
Over the years, the tree grew around the boards that framed the platforms, completely encompassing the lumber.
Sadly, by 1988 the tree house was showing its age and was no longer safe. I climbed up one last time and cut it down piece by piece.
As if it no longer had a reason for living, the tree died suddenly four years later and was cut down the following winter.
There were 135 rings on the stump, one for each year the tree had lived.
Use pressure-treated lumber for all framing materials. Enclose platforms with sides a minimum of 36 inches high.
Pick good trees. Never use a branch less than 8-inches in diameter and don’t use branches that sway a lot in the wind.
Branches that extend straight out from the trunk are weak. Use branches that angle up at a 45-degree angle or less.
Attach framing to the tree using galvanized or coated 1/2-inch thick threaded rods, carriage bolts, or lag bolts that will extend at least 8-inches into the middle of the branch. Use joist hangers for joists and rafters.
Make ladders out of 2-by-6 lumber and add hand railings for a good grip on both sides. Attach the ladder to the DIY treehouse and the ground below so it can’t be moved.
Unless you’re willing to build regular stairs, make access to the treehouse through a trapdoor that won’t open past 90 degrees. The kids will go in the trapdoor which will then close by itself.
There’s no need to be up 30 feet. Put the platform six to ten feet off the ground, but not much higher.
Start with a tree that has three or four branches that divide the trunk at a central crotch. Attach 2-by-6 lumber in a rough square using lag bolts.
If spans will be longer than 6 feet, use 2-by-8 lumber. Add joists between the frame about every 16 inches and cover the frame with 3/4-inch plywood.
Add 2-by-4 rails no less than 3-feet above the platform with vertical 2-by-4s every 2 feet.
Enclose the sides with 1/2-inch plywood. Add another frame above the platform for a roof or a lookout tower.
A roof should have a slope to help it shed water. If you make the second story a lookout, add more rails with enclosed sides.
This easy how to build a treehouse uses two trees to make the platform. It’s a good way to build a DIY treehouse if you don’t have a big tree with big branches to support the platform.
You should choose trees with a minimum 10-inch diameter at the platform height.
Start with two, 2-by-8 ledger boards on each tree and bolt them to the tree using long carriage bolts. Spans greater than 10 feet require additional bracing.
Drill holes through the board, into the trunk and out the board on another side. Attach the ledgers using 1/2-inch galvanized carriage bolts with nuts and washers. Brace the ledgers on each end with 2-by-6 lumber.
Add 2-by-8 joists between the ledgers every 16 inches. Cover the platform with deck boards or 3/4-inch plywood.
Option – Use a doubled 2-by-8 beam between the ledgers to hang swings from.
You can still build a DIY treehouse if you’ve only got one tree and it doesn’t have good branches at a reasonable height. Ten feet from the trunk, auger a 12-inch hole in the ground six feet deep.
Stand a 24 foot 8-by-8 pressure treated post up in the hole, level it and temporarily brace it.
Dump two bags of quick-set concrete in the hole and add the water. Mix it up with a long stick. Dump in two more bags of concrete, add more water and mix again.
Give it an hour to set up, then fill the hole in with dirt. Build your DIY treehouse the same way as building a treehouse between two trees.
You’ve got a good tree with a great crown and lots of shade, but the branches are too high up.
And the idea of digging a hole and putting in a post doesn’t appeal to you. That’s one way of doing it, but here’s another way.
Start by putting up two 8-foot long ledger boards on either side of the tree. Be sure the tree is at least 12 inches in diameter.
These two boards will serve as a support beam for the rest of the structure. Add a 2-by-8 frame that sits on the ledger boards and braces the frame at each corner using 2-by-6 lumber.
Add joists on 16-inch centers and build the floor with deck boards or 3/4-inch plywood. Rails, sides, and a roof complete the treehouse.
Build the DIY treehouse in mid-summer. The heavy spring flow of sap will have slowed greatly, but the tree will still have time to heal before winter.
If you bore a hole and it turns out to be in the wrong place, fill the hole with exterior latex caulk to keep insects out.
Bore as few holes as possible. Start with a minimal but sturdy frame that attaches to the tree, then build off of that. Attach the treehouse to the tree for stability as necessary, but don’t overdo it.
Don’t cut away the bark. The tree will grow around the wood, making it a part of the tree and adding strength to the structure.
A rope over a branch is a great way to make a swing of just about any kind. Cut a piece of a tire and nail over the branch, then attach the rope. That way the rope rubs the tire, not the branch.
Treehouses have special magic you just can’t get from a manufactured play-set.
And the kids won’t care how much you spend on that expensive playset. If you’ve got the trees, a little bit of time, and some spare elbow grease, make an easy “how to build a treehouse” with your kids.
You’ll be surprised how much fun you have building it and every moment the kids spend in it will make it all worthwhile.
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