Got tired of replacing canopy over hot tub every year or so. The Boss approved the purchase of material as long as she got a copper roof. I had assistance with the first 6x6, then all me from there on. Left access to slide tub out when we moved.

Acquired this years ago, cannot remember when and where. Used to slip into the cut of sheet goods, e.g. plywood, keeps the cut end in place as you finish the cut.