All-steel construction is designed to hold heavy filesup to 100 lbs. without wobbling or flexing. Holds one Companion Letter/Legal Portable File (AVTTLF2B), sold separately. Rails adjust to hold data binders and hanging files from 9" to 15-5/8" wide by 16" high. Sturdy lower rack for additional files, ledger books or reference material. 17-3/8w x 14-3/8d x 20h. Height with casters 22" fits under desk. Shpg. wt. 11 lbs. Assembly required.