Universal 40013 Filing/Storage Tote Storage Box, Plastic, 20-1/8 x 14-5/8 x 10-3/4, Blue
This tough crate can be stored flat (2 3/4" high) until it is needed, and then can be snapped in place in seconds. You can stack it, even with heavy loads. Holds up to 1 1/2 cu. Ft. Includes rods for hanging folders.