Reddit reviews UHMW (Ultra High Molecular Weight Polyethylene) Sheet, Opaque White, Standard Tolerance, ASTM D4020, 1/2" Thickness, 12" Width, 12" Length
We found 2 Reddit comments about UHMW (Ultra High Molecular Weight Polyethylene) Sheet, Opaque White, Standard Tolerance, ASTM D4020, 1/2" Thickness, 12" Width, 12" Length. Here are the top ones, ranked by their Reddit score.
UHMW is an impact-, chemical-, and moisture-resistant plastic with a low-friction surface, better abrasion resistance than PTFE, and more rigidity than other polyethylenesColor is opaque whiteMeets ASTM D4020 specificationsStandard tolerance
Two options: laminate some thin panels to the walls. Either FRP or hardboard. FRP will reist scuffs better, but both will save your walls.
Or mount some vertical rails every ~12" or so. You could get aluminum bar stock or some UHMW cut in to ~3/4" strips. This will give it something to glide on. You could mount some of those on the floor, too, to save your flooring from the sliding.
To account for swaying I planned on using a poorman's treehouse sliding bracket system with a uhmw spacer. I'll leave 3 to 4 inches lateral "play" to give the tree enough room to dance.
https://www.amazon.com/Molecular-Weight-Polyethylene-Standard-Tolerance/dp/B000ILJZF2?th=1&psc=1
Thanks for the rubber tire trick. I have a few old tires stashed around the property. But when you say rubber between the anchors please help me envision this, are you saying put rubber between the tree and beam so on the side to side motion the beam does not smack the tree sideways and damage the tree that way?