You can try some adhesive like liquid nails or PL200. If you can lay the sheet of OSB flat, glue 2x4 or 2x6 to the sheet, then you can come back the next day and screw it together.
I do not understand what the purpose of the bed is. Is it to keep dirt and water from getting on the floors or is there some other reason.
I would line it with plastic. OSB sucks up water like a sponge.
McDanger Reviewed by McDanger 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