Review on 🏋️ SuperLock Heavy Duty Weightlifting Mat by SuperMats by Robert Goodlow

Update 2020: Ordered three more boxes in one order. Shipped via UPS. Two out of three were delivered to my door (the address I gave). The third was taken to my rural post office for collection. It's annoying. It's bad enough that next-day delivery for Prime delivery is often closer to the week I live in when times are good. In the era of COVID this is totally unpredictable.#############% Original Rating: Bought a box to try. They seemed large so I ordered a second box. 5 of the 6 pieces in the second box were significantly thicker than the 6 in the first box. They don't lie flat. The difference is enough to be annoying and possibly trip you up. (Now I have those two layers deep and they're flush. Also: I don't have bumper plates. I have regular Olympic metal plates. While the rubber is solid, dropping a 45-pound plate onto a layer of concrete isn't a good one Idea The double layer I have is really more comfortable to stand on and I haven't had any problems with the concrete chipping under the weight I use (red in the photo) to create a seamless floor without changing height .)