This product was recently sold. This used mezzanine for sale was manufactured by Structural System Group. It is 12' wide by 64' long, and is only 5 years old. The mezzanine floor is designed to 125 PSF, and has top of deck height of 114", and clearance height of 96".
It includes stairs with 36" tread width, along with and hand side rails. The top of stair landing is 36" by 36". This rolled formed steel is galvanized, has 12"x12" seismic column feet. It currently has casters at the base of each column, making the unit mobile, but can be custom retrofitted to be stationary and anchored to the warehouse floor.