The MB9503 5-S Series Docking Locker from Matco, provides a secure area to store service carts and is great for storing welders, air compressors and other bigger items. This unit is designed to fit Matco's MSC10 Premier Service Cart and can accommodate all Matco service carts. Made of heavy-duty 16-gauge steel, the Docking Locker uses an integrated design of 3" corner posts ad braces and provided excess clearance, depending on whether the rollaway has 6" or 8" casters. The additional length of the Locker hangs lower than the rollaway, allowing the bottom shelf to be covered. A full piano hinge o the door can be hung to open to the left or right and the unit has butcher block and stainless steel top optional as upgrades.