Product Detail Ideal storage solution for industrial and commercial use. NSF food equipment certified. Strong welded wire construction. Can be set up as a four-tier single rack or as two two-tier racks to meet specific needs. Open design allows air circulation and reduces dust build-up. . The "Alera SW503618SR Industrial Wire Shelving Starter Kit, 4 Shelves, 36w x 18d x 72h, Silver" is best product for you. We recommended Alera SW503618SR Industrial Wire Shelving Starter Kit, 4 Shelves, 36w x 18d x 72h, Silver