Perfect for any environment, these durable utility carts will not dent, rust, chip, or peel. The strong plastic shelves have a weight capacity of 200 pounds per shelf. Carts ship knocked down for reduced shipping charges. Carts feature a sturdy structural foam construction with rounded corners to protect walls and furniture. Lightweight and maneuverable, these USPS carts feature non-marking casters, and measure 17-7/8"W x 39"L x 33-¼"H overall. Optional middle shelf is available upon request.