Genuine Quantum® modular wire systems offer a unique combination of shelf and post sizes in a variety of finishes to compliment any application. The all welded shelf construction is supported with architectural wire trusses to provide between 600 lb and 800 lb capacity per shelf. Quantum® Wire Shelf, Series: 1830, 18 in Width, 30 in Depth, 600 to 800 lb Load, Split Conical Sleeve Adjustment, 304 Stainless Steel