Same idea, different execution. Four airplanes barely fit under the Softopper®️, but I lose a foot of height due to the Decked®️ system.
The U shapes accommodate landing gear, and if I did it over I would angle them in toward the center maybe 15 degrees.
The legs are locked in by the eye bolts, not glued in. The legs can be changed out in the event a different airplane has to fit. Bottoms of the legs are tapered a little to ease assembly/disassembly of layers.
Believe it or not, there’s 35 feet of 1/2” pipe there, and 50 tees. Buy the tees and elbows in contractor packs of 10, much cheaper that way!