I would like to separate a closet into two levels for storage. The closet is 55" by 55" with 8' ceilings. I would like the second level to cut this in half at a height of 4'.
I was originally thinking of using 4" x 4" fence post in each corner then using plywood as the floor material. But I do not have the experience to design the structure to be able to support the heavy loads with confidence. I would like to avoid a vertical support beam that would block storage.
Can someone offer some suggestions? I would like to safely hold a few thousand pounds to be on the safe side.