Werner WH2210 350-Pound Duty Rating Wood Folding Heavy Duty Attic Ladder, 10-Foot Floor to ceiling height range 8-foot 9-inches to 10-foot 3-inches Rough opening width 22-1/2-inch by 54-inch length Full wrap-around door hinge minimizes heat loss Quality door is ready for staining and pull string allows for ease of operation Counter-balance mechanism eliminates sag and springiness and every step is rodded for strength and durability