The small version of the Lubricant Tray is 17 3/4" tall X 17 3/4 wide with 3 3/4" deep shelves. This is a wall mount unit.

There's lots of storage in the large version!  It's 32" tall X 22" wide with progressing shelves 3 3/4" up to the bottom 9" deep shelve.  This is a wall mount unit.