I have always used the thick, like 1 inch thick, hard rubbermat tiles that lock together at the edges. My son is a huge power lifter, strong man, and he said they use it in the real weight rooms, not the sissy boy cardio crap, lol!!!! It has worked great for me and I always use a layer of carpet padding between the tank and stand on all of my larger tanks. It doesn't have to have much unsupported area to crack. If it cracks get you some cans of flex seal and you will be fine for another year or six!!!! Just kidding, but you know somebody has tried this, lol!!!!
Later
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Later
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