How to best cut rubber anti-fatigue floor mats?

These mats are either the rubber, or the expanded foam rubber like product. For the expanded, an electric carving knife works well. I've never tried it on the dense rubber before, but try it on the corner first. For rubber, get out a large table or bench,,, plywood on a folding table works, Then you have two choices,,,, 1. Clamp a straight edge, 1 x 2 will work, if you have a straight one, and use a propane torch and a hawk bill carpet knife. You can try sawing manually, but you have to have a tough enough straight edge to hold down the matt. Try the hack saw blade on a corner. 2. For electric saw, cover the mat with an old piece of plywood, so you make a sandwhich of plywood, mat, plywood, and then cut it. Small teeth make a cleaner cut, and the plywood chips help keep your teeth from fouling. It stinks, keep it outside. I prefer the manual method with the torch and hawk bill. Less mess, more control, and less chance of messing up. Just remember, only heat the knife, not red glowing ...  more