Single Wire Shelf Dimensions: 18"W x 42"L Single Wire Shelf Dimensions: 18"W x 42"L POLY-GREEN features a true powder-epoxy over zinc-chromate electro-plating that ensures a strong durable finish and handles temperature and moisture extremes well. Ideal for dry storage, coolers and freezers. Includes NEXGard, an anti-microbial agent that protects the epoxy coating from bacteria, mold and mildew that causes stains, odors and product degradation. Wire shelves easily adjust without tools and align accurately at 1" increments. Reinforced shelves with welded surface ribs for added strength, 600-800 lb shelf capacity.