GLADIATOR EXTENSION UNIT The Gladiator Secure Garden Storage Shed can be increased in depth by 1.1m increments by adding extension units to the original shed. These extensions will not affect the strength, security or rigidity of the unit. You can add as many extensions as you want to create the ideal storage space. Increase depth by 1.1 meters Choice of colour please choose below Accessory pack available consists of plywood flooring & 2 x shelves