Extra-strength divider storage box is built for moderate use. Ideal for stacking without shelving. Stacking weight is 700 lb. Each storage box includes three 5" corrugated dividers to keep your legal-size files upright even when the box is partially full. Design features double-bottom, double-end, 1-1/2" side construction for use with or without shelving. FastFold one-step setup makes box assembly fast and easy. Deep, liftoff locking lid stays in place to secure box contents. Each box contains a high percentage of recycled material.