Basyx Training Table Base Funiture with Adjustable Height/Width, 18 by 48 by 25-Inch Base adjusts in height and width and is designed for use with 24" or 30" wide tabletops and 60" or 72" long tabletops Pilot holes are positioned for easy leg placement and assembly Legs adjust in 1-1/2" increments from 25" to 32-1/2" high