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Choosing treehouse bolts that won't harm the trunk

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1There's purpose-built hardware for this

Treehouse attachment bolts (TABs), also sold as Garnier limbs or tree anchor bolts, are engineered specifically for treehouse construction, designed for strength so the structure needs fewer penetrations into the tree than a frame built from many ordinary bolts.

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2Fewer, bigger wounds beat many small ones

One of the main selling points of purpose-built attachment hardware is exactly this: requiring fewer tree penetrations for a robust fastening, since every hole is a wound the tree has to compartmentalize and seal off, and more holes mean more entry points for decay.

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3A tree house is an old, cross-species idea

Great apes build platform nests in trees for shelter, and the habit of building above ground level may be one humans inherited rather than invented — a tree house is a platform or building constructed around, next to, or among the trunk or branches of one or more mature trees.

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4The tree's health is the actual foundation

Arboriculture (the professional cultivation and care of individual trees) and the work of arborists exist precisely because a tree carrying a structure needs to be assessed for its structural soundness first — species, trunk diameter, and branch health all factor into whether a given tree can carry the load safely.

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