Similar to the Prime Lo Pro Extreme Duty Dirt Buckets featuring 1/4″ bucket material thickness with double 1/4″ side walls and runners to beef it up to 1/2″ material thickness on the sides (see pics for reference). Our under strap supports are 1/2″ by 3″ and we run 6 of them.
You need the top to be strong enough to withstand the test of the toughest conditions so we use 1/4″ material thickness and fully weld our top support to the frame for MAXIMUM strength. Then we add the weld on replaceable teeth for digging performance.