HERCULES Series 770 lb. Capacity Designer White Plastic Stack Chair with Black Powder Coated Frame Finish Seat Size: 18''W x 16.25''D. Seat Height: 17.75''H Back Size: 17.25''W x 14.25''H Overall Dimension: 23''W x 19.75''D x 30''H. Weight Capacity: 770.000 lbs. 19x1.4mm Metal Gauge