Offers trouble-free storage and retrieval of inactive files that need to be retained in a safe place. Heavy-gauge steel frame easily locks together without tools. Warp-free particleboard shelves support up to 900 lbs. each. Designed to hold up to 80 letter/legal archival storage boxes (12w x 15d x 10h), sold separately. To complete the unit, you must order both the frame: Safco® 5260 Archival Shelving and the shelves: Safco® 5261 Particleboard Shelves.