This Garnier Limb (GL)® is 18” long with a 12” Perch and a 1” Boss. The 12” Perch gives you extra room for growth and you can add more Boss for higher loads.
Made from 4140 steel quenched and tempered R-28-32 hardness.
The Garnier Limbs® are the foundation of a treehouse by anchoring the treehouse to a tree. GL’s® are designed to hold the load out away from the tree in shear.
Instructional Video: See Below