When using on a garage floor - to convert the garage area to a gym — 1. Do I need to glue them down or are they heavy enough where they don’t slide (planning to tape a few together)? 2. Can I cut them to get the right fit (what kind of cutting tool would I need to use)? 3. Occasionally if I park my car on top, I’m assuming they can handle the weight. Has anyone done this?

You don't have to glue our 3/4" Premium Extreme Mats. These mats are heavy enough to stay in place without tape or glue. You can cut these mats with a sharp utility knife and a straight edge. Since these rubber mats are thick and vulcanized, it will take a few cuts to get through the mats. You can park a car over these mats. The only thing that would affect the mats is oil from your car if it leaks. Most new cars don't, but if your car were to, we recommend adding one of our Nitro Rolls or an AutoFloorGuard mat where you park.