Steel decking provides a durable storage surface for double rivet shelving units. Decks are constructed from 22 gauge galvanized steel in 6" deep planks that are fastened together to create the full shelf depth of 12". Steel deck allows for small parts and bagged items to be stored without falling through the gaps of wire decking and without the cost of having to replace particle board when it becomes worn or soiled from products that may leak. This product only supplies decking for one shelf level not an entire shelving unit.