Seat Pan Depth:19.5"
Back Height (Seat to Bottom of Headrest): 25"
Seat Pan Width:21.5"
Full Chair Width:22"-26"
Seat Height Adjusts from 24" to 31-1/2"
Tests: ANSI/BIFMA, GSA FNEW 83-269E
Base Size: 28" Diameter
Constructed with an indestructible ten-gauge all steel frame and built to hold up to 550 lbs.
Chair comes included with Dymetrol Suspension which is a bouyant stretch "floating-on-air" suspension that cushions torso with optimal tension. This prevents spine compression; bounces back instantly when weight is lifted; and has no springs to squeak.
Other features include an ergonomic knee tilt control, tilt mechanism position lock, lumbar support, and a 6 year 24/7 intensive use written warranty.