The build of the fezibo standing desk mat (gen 2 w/ anti fatigue bar) is really well built. It’s a solid piece of wood with a handy leather hook if you want to hang the board up or if you simply want to carry it around. The bottom of the board is non-slip and works great on our wood floors.
https://www.amazon.com/FEZIBO-Standing-Ergonomic-Generation-Obsidian/dp/B0831N61G3

