What's a good computer chair mat to get for hardwood?

I’m thinking those mats you get to put weight lifting stuff on would do a good job of protecting your floor.

I’ve seen mats in offices that are a thin carpet-type on top with a thin rubber layer underneath. I’m thinking that might work better than the hard plastic ones. I need to get one, too. My floor is really f’ed up under my chair. :(

It may take a wee bit of assembly, but…

They make big pieces of rubber that is semi-soft. Get one of those, and then use a hard plastic floor mat with the teeth on the underside (used for carpets), by sticking the teeth into the rubber. Cut the rubber/plastic thingy to size…

This would be non-slip, but also sturdy enough to roll across.

chairmats in office depot or staples will do the job.

Just get a square floor rug and put it where you have your computer chair, then get a grippy plastic desk carpet saver like I have to keep the rug from getting damaged.