treehouse tab
Emily Wong
Updated on July 07, 2026
Not only do TABs support large loads with ease, they also allow the free growth of the tree. In other words, TABs do not cause lasting harm to the trees! Unlike girdles and chains that wrap around the circumference of trees, TABs do not choke or damage their living hosts.
What is a tree attachment bolt?
Treehouse attachment bolts or TABs are specialized bolts engineered for treehouse construction. Various models and trademarks exist, with names such as Garnier limbs (GLs); tree anchor bolts; artificial limbs; heavy limbs or hyper limbs (HLs); special tree fastener or stud tree fastener (STFs).
How do you build a treehouse platform without hurting the tree?
For treehouse building, this means reducing the damage to the bark to an absolute minimum.
Cutting the trunk or branches. Never cut pieces out of the tree to allow supports to fit better as this exposes a lot of living tissue. Nails and screws. Bolts. Slings, ropes and cable. Fixed supports. Brackets. Floor, walls and roof.
How do you build a treehouse platform?
Choose a Tree. The first step to building a tree house is to find the right tree. Create a Blueprint. The next step is to draw up treehouse plans as accurately as possible. Build the Foundation. Layout the Platform. Attach Floor Joists. Attach Joist Hangers. Cut Angle Braces. Attach Deck Boards.
Can you nail into a tree without killing it?
Generally, no, something the size of a nail hammered into a tree won’t hurt it. The nail would most likely be inserted about an inch to an inch and a half into the bark. “The tree should compartmentalize and heal the wound around it,” says Grant Jones, technical advisor with Davey Tree Company in Kent, Ohio.
Can you drill into a tree without killing it?
You can definitely screw into a tree without hurting it, and the best, safest, and least harmful way to fix a treehouse into a tree is to use a treehouse attachment bolt (TAB) and a floating bracket.
How do you anchor a tree without it hurting?
What are the best nails or screws for trees? The #1 thing you don’t want is for a nail or screw in your tree to rust over time. That’s why it’s best to choose stainless steel, aluminum or any other rust-proof nails and screws for your project.
What kind of bolts do you use for a treehouse?
Treehouse attachment bolts (TABs)
These are extra large bolts specifically designed for use in treehouse construction. They have a wide, coarsely threaded core that bolts into the tree, then a wide flange to spread the load over a wider area of the tree’s surface.
Who invented treehouse TABs?
Proper materials attaching tree houses:
Most are made of 4140 steel, and according to designs that were created through the input of many people but made available to the world by Charley Greenwood, P.E. of Oregon. Most professional treehouse builders now use Treehouse Attachment Bolts, also known as TABs.
How do you attach a tree platform?
The main methods I found were:
Bolt the support beams directly to the tree trunk (usually using these special anchors)Bolt anchors and suspend the platform from wires.Don’t attach the platform to the tree, rather use beams to support it from the ground.
Can you put a bolt through a tree?
Putting a nail or screw into a tree will create a small wound, but nothing a strong, healthy tree can’t handle. The tree should compartmentalize and heal the wound around the object.
How do you anchor a treehouse to a tree?
Rather than wedging planks between branches, attach eye-bolts on the outside of the floor near any limbs. Wrap rope around the branches at least four times and then through the eye-bolts, knotting securely. Use a minimum of two eye-bolts under the floor to keep the base of the tree house firmly attached.
Does a tree house hurt the tree?
Tree houses do damage trees. Foot traffic compresses the soil, which is bad for the roots. Adding weight in the branches can also stress the tree roots, and fasteners can cause infection. Most trees will survive this abuse, but think twice before you build in a treasured tree.
Do treehouse bolts harm trees?
Most treehouses are secured to the tree via screws or nails. The holes created by these fasteners can damage the tree’s phloem and cambium, and provide a route by which pests, pathogens and fungi can access the tree’s vulnerable tissues.