Barcelona – A space saving interior spiral in black It can be easily installed in one day using common tools. - The standard 55” diameter can be adjusted from 104” to 115” in height - Can be installed in either a clockwise or counter-clockwise direction - The unique landing design can be used in multiple size/shape openings or mezzanine applications - Complete installation guide and toll free support - 1-year warranty Specifications: Tread Material: Laminated beech wood featuring a high scuff resistant finish Structure Material : Black powder coated steel Railing Material: Black powder coated steel Stair Rise: 8-1/4" to 9-1/4 Stair Diameter: 55" - Center pole Diameter 3.5" Staircase Height: 104" - 115" Ceiling Opening: 59" x 59" minimum Use For low frequency interior use Important: consult your local building inspector for any questions and specifics regarding compliance with the local building codes prior to purchase