This cubby unit holds up to twelve flat trays sized 13 L x 10-1/2 W x 2-7/8 D inches, sold separately. Units can be stacked up to three high and screwed together for safety. The unit comes partially pre-drilled and includes hook and loop strips for securing to other 14-1/4 inch deep storage units or on a table top. Unit can also be mounted to a wall. Assembled. Measures 47-3/4 W x 14-1/4 D x 13-3/4 H inches.