ALERA-SHELF,18"X18"-SR 2/CTN. Industrial Wire Shelving Extra Wire Shelves, 18w x 18d, Silver, 2 Shelves/Carton. Ideal storage solution for industrial and commercial use. Snap-together design assembles in minutes. Strong welded wire construction provides exceptional strength and stability. Open design allows air circulation and reduces dust build-up. Includes two shelves and shelf clips ALE-SW59SLBL. Color(s): Silver; Width: 18 in; Depth: 18 in; Height: N/A.