These are great for closet storage of tubs. I have 4 of these for basement storage and can get to everything easily. They fit perfectly for the Black/yellow tubs from Cost Co. I thought all tubs were same size and bought some from Menards and they were a bit too small for this rack. Easy to put together. I like that they would disassemble and store easily if I ever wanted to move. It is best to put the heaviest tubs on the bottom which helps stabilize them a bit.