 really hard hardwood. So you need to have a good blade, a good powerful saw. I went through batteries way quicker than I would most other things with this stuff. It was only an inch thick. And then what you do is you basically use their epoxy to epoxy together any seams, and then you can sand it and scuff it, and then you'll put an oil wax coating on it, two coats of that, and then one coat of this beeswax rub just to protect it.