Arke Sky030 63-in x 10-ft White Spiral Staircase Kit

The SKY030 exterior spiral staircase line of products consists of spiral staircase models, additional risers, center poles, matching balcony rails and safety bars. Manufactured in steel with a particular treatment (Sendzimir) that consists in galvanizing steel by using a small amount of aluminum in the zinc bath and producing a coating with essentially no iron-zinc alloy. This process guarantees high resistance and durability. The metal is polyester powder coated. The result is a staircase that is specifically made for outdoor installations because of its resistance to atmospheric elements. The staircase kits are available in 47, 55 and 63-in diameters and 3 colors – black, white and iron gray. The landing platform for the spiral staircase is a triangular/universal design for a more versatile and easier overall installation. Each kit with 12 treads and 1 landing installs with a 360° turn. By adding or subtracting treads to achieve different heights the rotation will change by approximately 26 - 30° per tre...