Secured storage cages are DEA-approved and have self-closing, self-locking doors as well as 2" x 1" 10 gauge wire mesh walls and ceiling panels. 2" square steel support posts with welded-on base plates for lagging to the floor are spaced no more than 10' apart. Every five feet at least, the walls of the drug storage cages have a minimum of 1 1/2" horizontal reinforcement. The panels use substantial 3/8" hardware that is inaccessible from the outside and install flush to the floor. Panels may be stacked to any height and have a clear span of up to 30 feet.