Wire, Particle board Rivet style or all Steel. Wire shelving allows for maximum light penetration and can be made into both stationary and mobile security units. Rivet style boltless shelving is an all the boltless shelving can be disassembled with ease, transported, and recombined to create extra storage where needed. Installing cost-effective rivet or all steel double-deck industrial shelving units with a grated catwalk between aisles, enables you to maximize existing cube space. All shelving types can utilize high density mobile storage system.