Series : Elite
Material : Aluminum
Finished Clearance : 20.5 In. x 52 In.
Clearance Between Springs : 17 In.
Stile Size : 1 In. x 4 In.
Tread Size : 1 In. x 4 In. x 14.5 In.
Load Capacity (Lb.) : 375 Lb.
Minimum Ceiling Height : 7 Ft. 8 In.
Maximum Ceiling Height : 10 Ft. 3 In.
Rough Opening Length (In.) : 54
Rough Opening Width (In.) : 22.5