M Treeangle Assembly Kit for 1-2 Trees, Adjust
Height-adjustable Tree Fastening Kit – 4 individual Support structures
✔ Practical construction for small and light projects
✔ For platforms up to 15 m² (1 tree) or 20 m² (2 trees)
✔ Recommended trunk diameter: from 40 cm (15,7 in)
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M Tree Brace Kit – Product Details
Products included in the set
Product dimensions
All dimensions and details can be found on the respective product pages:
Strut Connector GTS Safety:
Load Capacity - Set M
- in softwood up to 2.5 tonnes*
- in hardwood up to 5 tonnes*
* Important: The actual load capacity depends on many factors, e.g. lever arm, load direction or wood strength. Always calculate with a safety factor!
* GTS Side only use in pairs opposite each other!
* Avoid overhanging rotary movements!
Assembly instructions & video
To install the GTS Screws, a hole must be pre-drilled in the tree – you can find the right installation tools in our shop.
Detailed step-by-step instructions can be found on our YouTube channel.
Shipping & Delivery
Many thanks to Vitus and his team for the excellent products and advice. The Treehouse Screws are amazing and have made our summer project a reality.
Fast delivery, good advice, great quality – Treehouse Shop is the best place for your treehouse project! Many thanks to the Treehouse team and Mr Wahlländer!
Innovative and easy to assemble.
With this set, you can build a stable platform in no time at all – regardless of the growth form of the tree. The height-adjustable struts (green in the diagram) can be mounted flexibly, eliminating the need for complicated angle cuts. The platform can be readjusted and aligned precisely at any time – it couldn't be easier!
Professional installation tips – Side Tree Braces
Simple and precise assembly
The upper joist is slotted in precisely and securely fastened to the GTS Side with four carriage bolts (Ø 12 mm). The wooden strut only needs to be roughly positioned. The exact height adjustment is then made using the integrated, height-adjustable plate on the strut.
Only in pairs with counter bearing!
If a Tree Brace is loaded far out, lever and tensile forces are generated on the upper GTS Side. To eliminate these forces, a counter bearing is necessary. Therefore, Tree Braces must always be mounted in pairs and opposite each other on the trunk – this is the only way to ensure maximum load capacity and safety.
Avoid twisting movements
Tree Braces should primarily be loaded vertically. Lateral forces with a large lever arm can damage the drill hole of the upper Tree Bolt. To prevent wobbling or twisting of the platform, additional anchoring is recommended – for example, by means of a staircase set in concrete and connected to the platform.
Distribute load evenly
Whether in a tree or between two trees, make sure that the platform and tree bolts are evenly loaded. The main load (e.g. treehouse, green cube) should be positioned in the centre. To prevent twisting, you should also install diagonal beams and reinforce the construction in specific areas. You can find more information on this in Step 10: Building the platform.
Installation in crooked trees
A major advantage of the Tree Brace Attachments over classic triangular designs is that each Tree Brace Attachment can be individually adjusted to the shape of the tree. This allows you to mount the treehouse precisely and flexibly, even on slanted trunks or thick branches – without any compromises.
The right fastening for every treehouse project!
This Treehouse Kit in size M is ideal for smaller projects that are built evenly and symmetrically around the tree. The Tree Brace Kit can be particularly advantageous for crooked trees, as it offers great flexibility during assembly!
Our recommendation: If your tree has a trunk diameter of 40 to 45 cm (15.7 in), choose one of the larger Tribeam Kits with the GTS Allstar – it can withstand significantly more, especially when it comes to leverage, rotational and horizontal loads.
Successful projects
Be inspired by the DIY projects of our customers
Ask the Treehouse Pro
Need help? I'd be happy to advise you – please check our FAQs first, as most questions are answered there ;)
Tree Brace or Triangle Support Structure?
Tribeam Attachments are often the better choice because their closed construction makes them particularly rigid and stable. Another advantage is that the tree has more room to grow because the beams can be mounted at a distance – unlike with the GTS Side, where they sit close to the end grain.
Tree Braces, on the other hand, offer maximum flexibility – ideal if you need to respond to irregular growth patterns or thick branches.
In some cases, a combination of Tribeam and Tree Brace is the best solution.
For more information, see Step 9: Support Structures
How do I mount the screws at the same height?
A simple tube level is the cheapest (10 - 15 €) and most effective solution:
- Mark the centre of the drill hole for the first GTS Screw.
- Transfer the height to all other trees using a hose level and water level.
- Ensure that the GTS Screws are perfectly aligned, using a compass, for example.
You can find detailed instructions on our YouTube channel.
How thick do my wooden beams need to be?
That depends on the span, the load and the area of application. You can find all the details in our Step 11: Timber guide.
How do I connect the wooden beams?
For stable connections of the floor joists, we recommend partially threaded screws:
- Up to 160 mm in length: stainless steel screws (ø 6 - 8 mm)
- From 160 mm: galvanised screws (ø 6–10 mm)
Joints can be made smooth. Secure heavily loaded areas additionally with fully threaded screws, angle plates or PU glue.