Heavy Duty Bun Pan Racks are all welded to ensure maximum strength and stability. They are available in both end loading and side loading styles and accommodate 18″ x 26″, 13″ x 18″. And 14″ x 18″ pans. They are equipped with four 5″ heavy duty plate type casters with non-marking wheels to protect floors and minimize noise. They have caster plates securely welded to the frame of each unit. Casters are then bolted to the caster plates, not directly to the frame, with four bolts. This procedure strengthens the overall integrity of the rack and prevents breakage.