The top section consists three drawers, each measuring 15 1/4" long by 8 1/4" wide.
The middle section consists of two file drawers each measuring 14 1/2" long by 12" wide.
The bottom section cabinet has veneer on the front of the drawers. The two bottom drawers have different measurements, one standard and one legal. Left side measures 12" wide by 23 1/2" long, right side is 15" wide by 23 1/2" long.