Hi, I'm looking for suggestions on flooring for a basement and underneath a punching bag. I prefer to train barefoot since I do KB/Muay Thai. After an extensive search on the internet I found that puzzle mats like these... http://swainsportsintl.com/f_flooring.htm seem to be the most popular. In my opinion it's very expensive to do a large area with them. I've found some alternatives but the price doesn't seem to vary much. I'm just wondering if anyone has a more inexpensive idea. It needs to be firm enough to strike from but absorbent enough to jump, kick, fall on while training barefoot.