Werner AA1510 7 ft. - 9 ft. Compact Attic Ladder (24 in. x 18 in. Opening) - Walmart.com
Little Giant Ladders, Adjustable Safety Cage, 5-9 foot, Safety Cage, Fiberglass, Type 1AA, 375 lbs weight rating, (18509-240) - Amazon.com
Quiet Glide 9 ft. Red Oak Library Ladder (10 ft. Reach) Black Contemporary Rolling Hardware 12 ft. Rail and Horizontal Brackets QG.240-9RO-12-H.08 - The Home Depot