I've got no advice on non-draining beds. But Tranoble was getting great results and if you have a good grasp on that concept, go for it.

If you use OSB I'd line it in plastic just to keep the plants and the glue from coming in contact. Why? Just a hunch.

HAve you priced out actual plastic grow trays? By the time you're done with all the other building hassles, and buying materials, it might have been better just to buy a tray. Although you are urban, and rubbermaids are WAY more stealth to be carrying in and out of your apartment. Your call.
stinkyattic Reviewed by stinkyattic on . Rubber Beds grow I was originally going to make the beds out of OSB board and 2x6 or 2x8 which I already purchased the wood. My Grow spot is on the DL and no one knows what I have behind the closed doors. So I can not get anyone to help me build the box. I tried to do it by myself but I can not hold the wood and screw it.... I was going to do a bed 4x10 I have Rubbermaid containers that are 3ft 7inch by 1 ft 10 inches. I want to take 5 or take 6 of these Rubbermaid's put them up on milk crates and fill Rating: 5