The Arke Enduro exterior spiral staircase line of products consists of spiral staircase models, additional risers, center poles, matching balcony rails and safety bars. The Enduro spiral staircase kits are available in 47, 55 and 63-in diameters. The Enduro stair treads are manufactured of 12-gauge steel, hot-dipped galvanized and perforated for safety. Clockwise or counterclockwise rotation. Each standard kit with 12 treads, 1 landing, balusters, 1 extruded vinyl handrail coil, landing rail and stainless-steel hardware. Each kit installs with a 360° turn. By adding or subtracting treads to achieve different heights the rotation will change by approximately 26 - 30° per tread. Safety bars – required by some municipalities - are available in a set of 12 to close off the back of the treads (creating a 4” maximum gap). Arke staircases can be easily installed by the homeowner in a single day using common household tools. A complete installation guide is included with all kits. Toll-free support is available (888) 782-4758. Consult your local building inspector for any questions and specifics regarding compliance with the local building codes prior to purchase.
Optional accessory - by purchasing up to three additional risers, the height of the staircase can reach a maximum of 148-1/6-in
Additional riser kit consists of one 12-gauge hot-dipped galvanized perforated steel tread component, four balusters and stainless steel hardware
Use in addition to Enduro model K05003
Each riser will add to the rotation of the stair
Rise adjustable from 8-9/32-in to 9-1/4-in
Delivery in 10 days from date of purchase in the continental United States
