Originally Posted by ozarkjeep
i Made tree straps exactly like those, out of nylon tubular webbing rated for 4000+ lbs.
the sewn loops didnt hold, well, not all of them have held.
I gave up using them, when a loop snapped, it was SCARY.
I sewed a 1.5 inch long 'X' shape, and boxed it, usiing a zig zag stitch, and non cotton thread.
IM not sure how I could have made it much stronger?
Length of stitch matters a lot. A 1 mm stitch length can severely weaken your webbing, while a 1.5-2 mm stitch length would affect it quite a bit less. I use a zigzag a good bit with a 2 X 2 stitch size, and I have never had a problem with anything giving out at the stitched area, IIRC.