The DOLLE CALGARY spiral staircase is a Nordic design with a tight and stylish appearance that combines design and comfort at an attractive, affordable price. With this space saving staircase kit, you get optimum use out of your available space. The CALGARY spiral staircase from DOLLE stands as a modern work of art in the middle of the home and functions as an essential link in the home's infrastructure, where the upper and lower floors meet. The CALGARY can achieve a floor-to-floor height of 80.31 inches to 110.5 inches. The CALGARY Staircase Kit comes in a 47-inch diameter with a gray powder coated painted finish. Equipped with lacquered multiplex beechwood treads, this staircase kit is designed to handle high traffic areas. The 11 treads plus additional landing platform provide a comfortable walking space while the single railing with continuous PVC handrail ensures safe access up and down the staircase. The CALGARY can be installed clockwise or counterclockwise to fit your exact needs. This kit can be installed in one to two days using common tools. All parts necessary to complete installation are included in this all-in-one kit. Material: Metal.