storage box medium duty letter legal 12x15x10 12 ct we
medium-duty storage boxes accommodate letter-size or legal-size files . liftoff lids provide easy access . hand holes offer improved portability ease and comfort . average amount of evenly distributed weight that can be safely stacked on top of a box is 650 lb . sturdy corrugated boxes are made with two-ply b-flute with 1 8 thickness . each box contains 65 percent recycled material .