This 1.25" Knee Brace Bracket attaches to our Treehouse Attachment Bolts and our 1.25" Diameter Lag Bolts.

Cut a 5/16" slot in a PT 4x6 or other wood beam as required by your design.

Mark Holes through the Bracket to ensure alignment. Then drill straight through with a 5/8" wood bit.

Insert Knee Brace Bracket into slot and install 5/8" galvanized carriage bolts (included with knee brace). Tighten until lock washer closes, but no further.

Cut a notch into the top of the knee brace so that it fits the platform in the desired spot. Reinforce area as necessary to ensure even support.

Press the bottom of the knee brace tightly against the tree and pre-drill a hole slightly smaller than the bolt you are going to use. Then turn the bolt in with a socket wrench (3/4" drive makes it easier) or a large pipe wrench.

View of finished knee brace from end

View of finished knee braces under treehouse