In planning my floor rod locker, roughly what is the minimum length opening I need to easily get most rods in-and-out? (30", 36", etc.). I have a good plan for the inside of the locker using pieces of PVC pipe to slide the rods into, lining it with alum flashing and carpet. Does anyone have any suggestions on where to get a hatch door for this or how to go about making one that is strong enough to be constantly walked on by heavy people like myself (275lbs)?