A hanging-folder file frame for hanging folders which have two rigid top edge members with end hooks, and a web which extends downwardly from one top edge member to a fold line and extends upwardly from the fold line to the other top edge member, comprises a first U-shaped end frame member which has a base portion with two legs that extend upwardly from the base portion and terminate in top portions, a second U-shaped end frame member which has a base portion and two legs that extend upwardly from the base portion and terminate in top portions, a pair of side rails that extend between the first and second U-shaped end frame members, and corner caps which connect the ends of the rails to the top portions of the end frame legs. The corner caps have key holes that receive keys formed in the top portions of the legs to present rotation of the corner caps. The top edge members of the hanging folders cross brace the file frame.