The Louisville aluminum attic ladder features a sturdy, yet lightweight design with pre-drilled holes for easier installation.The door is flame retardant for up to 30 minutes compliant with ASTM E-84. Achieve superior energy efficiency with the R10 insulated door and factory installed weather stripping. It features an easy to open door with gas piston system, adjustable shoes, slip resistant steps, and an aluminum handrail for a comfortable transition.