Ergotron LearnFit Sit-Stand Desk, Tall - High Pressure Laminate (HPL) Rectangle Top - Melamine Base - 15 lb (6.80 kg) Capacity - Height Adjustable - 33.5" (850.90 mm) to 48.5" (1231.90 mm) Adjustment - 24" (609.60 mm) Table Top Length x 22" (558.80 mm) Table Top Width - Classroom - Assembly Required