The Caterpillar CAT overhead shelving system is built to make the most of your unused ceiling space. This unit has an adjustable height range (23" to 38") for flexible installation and safe clearance. The reinforced support brackets provide dependable strength and secure the load-bearing capacity. Heavy-gauge steel construction delivers superior strength. | Caterpillar CAT 48" x 48" Overhead Shelving System (CAT-RS484838G)