Treehouse by Culprit

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Project by Culprit posted 09-20-2013 07:28 AM 2110 views 4 times favorited 13 comments Add to Favorites Watch

Here is the treehouse I designed and built for my kids. It spans two Poplar trees in our backyard and is held up in the trees with 4 bolts – 2 in each tree. Aside from getting to see one of the happy clients, this video shows the construction details, gives dimensions, types of joints, and method of attachment to the trees.

The treehouse is 3 years old now and is still in perfect condition with no maintenance at all (other than visual inspection). The video shows how much gap I left in the decking around the trees. That gap has been used up. I will need to trim the deck boards back some before spring. Also, the standoff distance shown in the last picture above has been used up by the tree growing. I mentioned in the video that when that happens I planned to back the bolts off a turn or so each year, but I’m not going to do that just yet. I’m going to give it another year or two and see what happens. So far it’s strong and steady and the trees are healthy so I’m going to leave well enough alone and just keep watching it.

Thanks for looking and let me know if you have any questions.

13 comments so far

View westok's profile


19 posts in 2058 days

#1 posted 09-20-2013 11:30 AM

Great project!. I have a grandson that would LOVE one of these! Thanks for sharing.

-- Mark K, Birmingham, AL, "The rusted bolt will not move until you utter the "magic word", unfotunately, children are usually present."

View PopsHuckster's profile


157 posts in 3245 days

#2 posted 09-20-2013 06:17 PM

OK…somebody’s been watching too many episodes of Treehouse Master! Nice job.

-- Pop

View PopsHuckster's profile


157 posts in 3245 days

#3 posted 09-20-2013 06:23 PM

As the circumference of the tree grows what is going to keep the deck joists from starting to bend since they don’t seem to float on the triangles? Are the joists notched or do they slide in slots on the triangular supports?

-- Pop

View helluvawreck's profile


32087 posts in 3039 days

#4 posted 09-20-2013 06:28 PM

That is really special. The kids have to love it. Nice work.

helluvawreck aka Charles

-- helluvawreck aka Charles,

View hoss12992's profile


4071 posts in 2066 days

#5 posted 09-20-2013 08:48 PM

Great job. Love the design of it

-- The Old Rednek Workshop

View NormG's profile


6265 posts in 3177 days

#6 posted 09-20-2013 08:51 PM

Now, that is a tree house if I ever saw one, great job, I know they really have made use of it

-- Norman - I never never make a mistake, I just change the design.

View Mike's profile


139 posts in 2214 days

#7 posted 09-21-2013 12:35 AM

Treehouse masters got nothing on you! Nice work!! I bet the kids love it!!

-- A person of integrity never speaks of it...he walks in it...

View JoeinGa's profile


7739 posts in 2180 days

#8 posted 09-21-2013 12:28 PM

Pretty cool. ANY kid would love to have that in their yard.
How long are those bolts?

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View Ken90712's profile


17592 posts in 3362 days

#9 posted 09-21-2013 03:42 PM

Very cool. How fun…..

-- Ken, "Everyday above ground is a good day!"

View Culprit's profile


4 posts in 2455 days

#10 posted 09-21-2013 03:50 PM

Thanks for the comments. The joists are notched on one triangle but not on the other to allow movement when the two trees sway in a big storm – the video shows it more clearly.

As for what to do when the tree circumference grows, I show some of that in the video with the bushings I used. But when the circumference gets so big it is pushing the joists apart, well, it’s a treehouse, I’ll cross that bridge when I get there. I gave it as much room as I could and still support the decking span. It’s been 3 years and so far, so good.

The bolts are 1 inch diameter, and 12 inches long. I counter-bored the holes in the trees appropriately for the lag bolts.

Thanks again for the comments and questions!

View kaerlighedsbamsen's profile


1251 posts in 1886 days

#11 posted 09-21-2013 06:40 PM

Wow. Next thing you build a roof for it and start living in the tree…

-- "Do or Do not. There is no try." - Yoda

View Fishinbo's profile


11362 posts in 2348 days

#12 posted 09-24-2013 02:21 PM

Super cool tree house! Great design and build. Kids will get loads of fun and great memories playing in it. Great job!

View Culprit's profile


4 posts in 2455 days

#13 posted 09-24-2013 07:10 PM

Thank you, Fishinbo. Yes, the kids are loving it!

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