[yummy mummy]

Originally Posted by woodworkbykirk

unless your going to build a frame for the 3/8 plywood to be installed to . 3/8 alone wont have any strength unless of course you fasten it directly to the wall first... its thin plywood that will continue to bend and move on its own. you need at least 1/2"

Next time I will use 1/2 inch. I am going to hang it on the wall.

[dwcopple]

I built a perimeter frame from 2x2 and put a couple support posts in the middle and screwed the 7/16 OSB to the framework. Then bolted the 2x2 legs to the bedframe. Works very well.