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.
Enduro K05003 63-in diameter includes: 12 perforated steel treads, 4 round spindles per tread, 1 landing, center pole, 26-ft flexible black extruded vinyl handrail, landing rail (connected to center pole), connectors and hardware
Adjustable in height from 99-3/16-in to 120-1/16-in
With additional accessories - purchased separately - the height can be adjusted from a minimum of 82-11/16-in to a maximum of 148-1/16-in (qty. 1 – 3 model # K05006 add riser, qty. 1-2 K00000 center pole)
Rise adjustable from 8-9/32-in to 9-1/4-in
Optional balcony rail kits available (model K05007)
1-Year warranty for manufacturing defects
Complete installation guide and toll-free support
The Arke 63-in diameter spiral staircase is designed to meet IRC code requirements, as relates to spiral stairs