Compact aluminum attic ladder is lightweight and easy-to-open and close with included assist pole. Installs into small openings for access to untapped storage space. Ideal for hallways, closets, and other tight spaces. Non-marring aluminum with plastic bottom feet. 250 lb. load capacity. Minimum opening: 18" W. x 24" L. Door not included. Hardware for door is included. Telescoping ladder design. Floor to floor height range 7' to 9'10". 12-5/16" ladder width. 3'6" landing space required. Rail size: 5/8" x 2-5/16". Step length: 10-5/8". Step width: 1-1/4". No cutting of 3 section ladder required.