Questions tagged [treehouse]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
47 views

Smooth or threaded shank for deck boards under subfloor

For building a treehouse, I'm putting 5/4 thick decking boards across the joists to make the floor (Home Depot #1001754835). My default would be to use deck screws that have a smooth shank that's long ...
g491's user avatar
  • 730
0 votes
1 answer
194 views

Spreader beam with knee braces - angle of mating of knee brace top to beam

I'm trying to figure out which is the correct mating angle out of Option A and Option B seen below (or perhaps something else different altogether) to properly help support the spreader beam using ...
g491's user avatar
  • 730
1 vote
1 answer
429 views

How should I screw knee braces to a spreader beam?

I'm planning to build a 2-tree treehouse and will be constructing tri-beam supports as seen in this video (or more accurately each side will be braced to the tree separately due to slight lean, but ...
g491's user avatar
  • 730
1 vote
3 answers
447 views

Waterproof plywood alternative with structural strength of plywood [closed]

Is there a readily available alternative to plywood that I could use for the walls and floor of a treehouse that would be waterproof (from a will-not-be-damaged-by-water standpoint rather than a ...
g491's user avatar
  • 730
2 votes
2 answers
177 views

Sealer / solution for flat roof deck (of a treehouse)

Building a treehouse which will have a flat roof which will double as a deck, so I'm looking for a way to seal it but have it be aesthetically pleasing (looking at flat roof sealers it seems like they ...
g491's user avatar
  • 730
0 votes
1 answer
153 views

Tie 4x4 to 2x joist with hanging strength not supportive strength

I want to attach a short 4x4 to a 2x12 joist which will be part of a treehouse's floor. The 4x4 will be hanging down and not touching the ground, so the force will be pulling and not the usual force ...
g491's user avatar
  • 730
1 vote
1 answer
175 views

Should I reinstall ledger board screws to stagger them?

I am building a treehouse deck and realized I installed the lag screws incorrectly into the ledger board I attached to my treehouse tribeam. It is a 4x6 tribeam attached to the tree. A 2x8 ledger ...
Chris's user avatar
  • 643
1 vote
1 answer
565 views

How should I attach tree house joists to allow for tree growth?

I'm building a 7 x 12 tree house platform on a single tree. The layout is one tribeam Attached to the tree with tree house attachment bolts. Then in front of that are two 6 x 6 posts with a 4x6 beam ...
Chris's user avatar
  • 643
0 votes
3 answers
357 views

Fix faulty 6x6 post install

I mistakenly installed a post protector sheath on bottom of my 6x6 post without drilling the drainage holes. I’m not sure why manufacturer doesn’t include the drainage holes to begin with. I buried ...
Chris's user avatar
  • 643
0 votes
0 answers
59 views

Glue wooden stairs

We have a spiral staircase made of wood. What means can be used to solve the problem that the wood is solid again? I thought a wood glue like this one should do his job.
Max Hager's user avatar
2 votes
1 answer
544 views

Can you build a treehouse (or tree deck/platform) in a floodplain without an HH study?

While I was aware that part of my land was in a floodplain, turns out that in 2014 the DNR (or FEMA or something) declared the entire 5.5 acre parcel is in a floodplain. In order for zoning to approve ...
aleks1217's user avatar
0 votes
0 answers
51 views

Treehouse Construction

I want to run a treehouse design idea by you all. I'm building a treehouse around a tree (not drilling into tree). Beam is 20 feet by 10 feet. I have six, 6x6s, on concrete footings. I'm struggling ...
Dan's user avatar
  • 1
3 votes
1 answer
1k views

Is my treehouse platform structurally sound?

I'm working on my first treehouse as an adult 😂 I've built plenty out of scraps as a kid, but nothing of this magnitude. I'm mostly concerned about the structural integrity of the platform with this ...
djdmbrwsk's user avatar
  • 133
0 votes
3 answers
2k views

Do I need rim joist for this tree house platform? What will happen if I leave them off?

Because the angle is odd and the trees are not parallel my idea was to put everything up as is, tack the decking on and then strike a line on the joists to cut them exactly so they're even. You can ...
Ryan Detzel's user avatar
0 votes
1 answer
240 views

Treehouse joists on beams or beside beams?

Looking at treehouse plans online - sometimes you see joists on top of the support beams, sometimes it's all one layer using joist hangers. Is it best if joists are on top or does it matter? Here is ...
bendytree's user avatar
  • 164
2 votes
3 answers
3k views

How much weight can a 3/4" x 8" lag bolt hold when drilled in half way?

Question: How much weight can a 3/4" x 8" lag bolt hold when drilled in half way? What about other lengths and thickness, and percent drilled in? Is there some sort of formula to calculate? Optional ...
jbyrd's user avatar
  • 163
0 votes
1 answer
2k views

Will two 2x10 beams carry a a 2500lb floor for a tree house?

I am wanting to span between 2 trees with 12 to 15 foot beams. I will have one beam on one side of the trees and another beam on the other side. The beams will be supported 1/3 in from one end and 1/3 ...
FDecker's user avatar
  • 17
0 votes
2 answers
525 views

Is a 12-in diameter tree stable enough to support a tree house?

I plan to build a tree house by bolting two (2) 2x6 on the side of this 12-in diameter tree: I don't know what tree it is and in the process of asking here: https://gardening.stackexchange.com/...
HP.'s user avatar
  • 1,842
2 votes
1 answer
1k views

How to calculate sizing for treehouse footing?

I would like to build a small free-standing treehouse without digging into ground and/or pouring concrete. Here is what I have in mind: It is, of course, for kids, so I don't think I need it to be ...
Gnudiff's user avatar
  • 610
1 vote
4 answers
310 views

Partial support of a beam

I want to attach a 2x12 beam to a treehouse attachment bolt bracket, and I want to double up the beam, as shown (the view is from underneath). The bracket is 2" wide, and apparently designed to ...
meetar's user avatar
  • 155
1 vote
3 answers
208 views

How long do tree stumps take to decay? [closed]

I had a large tree in my yard cut down to about 8' above ground. It now has two stumps joined at the base. I am planning to build a treehouse for my kids around the stump with the weight being held by ...
Innuo's user avatar
  • 111
1 vote
1 answer
3k views

Knee brace alternative to support 12' 2x4 span for single tree treehouse

I see most treehouse's have knee braces to support the frame of their treehouse. I'm trying to find an alternative, if any, and also ask if my 2x4x12 frame will be strong enough. Here are pictures of ...
Bignadad's user avatar
  • 129
0 votes
1 answer
1k views

Need Tree Platform Build Advice

First time here and I am hoping someone can help me with my issue. I have been planning platforms for the past couple weeks for the kids and am starting with the most basic one. Rough sketch is ...
Reynen's user avatar
  • 1
1 vote
3 answers
1k views

Best way to suspend beam end from cable

I'm about to buy hardware for a treehouse project, and am wondering about the best way to attach 3/8' galvanized cables to a 4x10 PT beam. The cables need to be attached near the ends of the beam to ...
Jared Rogers's user avatar
0 votes
1 answer
1k views

Knee brace support hold down bracket for treehouse [duplicate]

I cannot seem to find the right bracket to use as a hold down on the tree side for a treehouse knee brace beam. I need to find one that can bolted to the tree and hold two 2x8's. It looks just like ...
chiltonjh's user avatar
0 votes
4 answers
14k views

Knee Brace support Hanger for Treehouse

I am going to be building a Treehouse soon, and am researching the best and most cost effective means to do so. I am good on the platform and beams (using Treehouse Attachment Bolts), and am going to ...
mohlsen's user avatar
  • 6,271
0 votes
0 answers
231 views

Building an inverted climbing wall onto a tree?

We have a cottonwood tree in our back yard with a treehouse in it, I have one vertical climbing wall on one side, but we're thinking of putting an inverted wall on the other. The tree is one large ...
ShemSeger's user avatar
  • 365
4 votes
2 answers
6k views

How much weight will a 4"x8"x20ft oak beam support?

I am building a tree house. I will cut two support beams from oak to support the building. How much weight will a 4"x8"x20ft oak beam support? I will be working between two trees.
ron blair's user avatar
3 votes
1 answer
2k views

How to tie treehouse cross beam to tree branch notch without harming tree

I am building a tower style tree house and have a perfect tree with a notch to act as one of the 4 support posts. The other three posts will be 4x4s with cement footers. I was thinking of resting a ...
statHacker's user avatar
-2 votes
1 answer
727 views

How long can I run a joist without supporting it in the middle?

I am building a tree house with a bridge from one tree to another. What is the maximum distance I could run a joist for the bridge without supporting it in the middle?
Russ's user avatar
  • 1
2 votes
1 answer
303 views

Source for sample designs for a Tree House?

I have a nice tree in my backyard, the base is easily 10+ feet in circumference. I want to build my son a tree house. More correctly I want to build a tree house with my son. I was wondering if ...
geoffc's user avatar
  • 527
6 votes
1 answer
2k views

Suggestions for treehouse platform support without posts

I'm building a treehouse in a fully grown 50 foot tree that has four trunks (as it were) each of which is between a half foot to a foot in diameter. First, is this a good candidate for a small tree ...
Karim's user avatar
  • 357
6 votes
1 answer
559 views

How can I repair a Palruf roof?

I've installed a couple of transparent Palruf PVC sheets for a treehouse roof. I've gotten some small (several inch) holes in it that I'd like to patch up. I have some small pieces of Palruf left over ...
Rob Napier's user avatar