Designed for use in tandem, making a tri beam and individually as a single Knee Brace to support a horizontal beam.
NOT RECOMMENDED FOR USE WITH LAGS
All of our Brackets and Knee-Braces are designed to fit a 1 1/4" diameter GL
Instructional Video link: See Below
The double knee brace is a great option for treehouse support. I love how perfectly it fits on a GL. The brace is heavy and thick, with quality welds, makes for quite a hearty support attachment.
What a concept! Installation was a breeze. I'm excited to see it bear the weight I want to it
These are quite sturdy and not too difficult to install. I used them to attach 2 angle braces to the tree below a cross beam. They are designed to install with a normal GL, although I used a longer 15" and an additional 3" collar for extra strength at the tree since I was going into cedar.
Installing the braces on these is also relatively simple. Just kerf the bottom of the angle to slide over the knife and rest against the base, and bolt the top of the brace into the bottom of the beam.
Excellent product--I needed to brace either end of a beam held up on two separate trunks of a large maple tree. The tree bulged too much at the central trunk (the crotch was between the garnier limbs and the bottom attachment point of the the braces) to permit a "tribrace" that would have a single attachment point. So I needed two of these, one on each side of the bulge to permit the brace to be in plane with the beam. Secured the brackets with 1-1/4" lags--used grease. The installation looks good and I am confident it will serve well. The trickiest part is marking out the holes in the wood brace (I used 4x6, but may go to paired 2x6 in the future) to align perfectly with the holes in the metal bracket--the brace should bottom securely on the butt plate, so it holds the weight/compression, leaving the bolts to secure the wood to the metal and to work in tension where applicable.
