Safco Industrial Wire Shelving Add-On Unit, 48inW x 18inD, Gray

Includes 4 shelves, 2 posts and S-shaped hooks for snap-together assembly Each shelf supports up to 650 lb (2,600 lb per unit). Open-wire construction permits air circulation. Shelves can be adjusted in 1in increments. Easy assembly without tools. Starter units and extra shelves sold separately. GREENGUARD certified - certified for low chemical emissions: UL.COM/GG - UL 2818. Ranked in two tiers: Certified and Gold. Less harsh chemicals - made with fewer harsh chemicals, or safer chemicals than typical alternatives, helping reduce your use of and exposure to substances that may be more harmful to your health and the environment.