Durham Heavy Duty Bearing Rack, For Large Compartment Boxes, Fits Four BoxesMfr #: 303B 15. 75 95 Sturdy construction using prime cold rolled steel Each cradle holds up to 75 lbs Solid cradle extends beyond the opening of the unit when in the open position reducing the chance of drawer covers closing when not intended Positive closure feature keeps trays from sliding out unintentionally Measures 20" width by 15" height by 15 3 4" depth