Here is my general plan.
These will be built in the corner of a room and each bay will have a lag into the wall's 2x4 including one in the adjacent wall. The idea is to build these 2x4 frames and wrap them with 1/4" plywood.
I have a few questions.
How can a calculate what kind of load the wood itself can take? I'd probably use #2 Hem-fir.
Being 2x4's, I'd have 3.5" for the lag to hold, eg. I could use a big bolt. How can I calc the right bolt and does that affect the load rating? Is there a point it causes the wall's stud to fail?
I was looking at 5mm birch ply to wrap with, do I get more strength by using 1/4" ply or does the added weight counteract it?
If I built the whole thing with 2x2's (1.5"x1.5" actual), how much would it change things?