Extra shelves for Safco Industrial Wire Shelving offer a dust-free wire design. Flexible design allows 1" shelf adjustments and modular expansion. Each shelf holds 1,000 lb. evenly distributed. Wire shelving is made from strong, welded steel construction (10-gauge shelf surface, 3-gauge frame, 16-gauge posts, 6-gauge wave pattern) with a durable powder-coat finish. Open wire design permits air circulation and prevents dust accumulation. Starter unit (sold separately) includes four shelves, four posts and snap-together clips.