Need ideas/critiques for building a safe garage jiu-jitsu mat space for my kids I’m converting part of my garage into a small jiu-jitsu training space for my kids and would really appreciate ideas, critiques, or better solutions from anyone who has built something similar. I already have the floor mats and wall pads. The floor mat area is approximately 153.5" wide x 216" long, so roughly 13' x 18'. The floor mats are about 1.75" thick. I also have 5' tall wall pads that will go on two walls. The garage has a new epoxy floor, but there is one major complication: there is a raised concrete curb/ledge at the back of the garage that appears to function like a tire stop. It is approximately 4" high and 24" deep. The garage floor also has a slight slope toward the garage door for drainage. Because the mat will cover the rear curb/ledge and extend forward into the garage, I need to build some kind of raised platform so the entire mat area is level, stable, and safe.…