Model # K21001

Internet #202026729

Arke Eureka 47 in. White Spiral Staircase Kit


Eureka 47 in. White Spiral Staircase Kit

$216431 /each
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Product Overview

The Eureka 47 in. Dia spiral staircase kit is made of steel and powder-coated in hi-gloss white. This stair undergoes two processes for protection in the exterior applications. First an electrostatic galvanization process is used for the base protection, followed by a second application of the powder-coat paint application. The staircase can be easily installed by the homeowner in a single day using common household tools.

  • Adjustable in height from 99-3/16 in. to 120-1/16 in.
  • Height can be lowered to a minimum of 82-11/16 in. and to a maximum of 148-1/16 in. by adding additional accessories (purchased separately, model K00000, K21010)
  • All in-one complete kit – includes: 12 hi-gloss white steel treads with gray ABS covers, 1 landing, center pole, round spindles, 26-ft flexible gray extruded PVC handrail, landing rail (connected to center pole), connectors and stainless steel hardware
  • 3 spindles per tread
  • Rise adjustable from 8-9/32 in. to 9-1/4 in.
  • Clockwise or counterclockwise, exterior/interior installation, designed for use in square, round or mezzanine applications - not recommended for coastal applications
  • Finished opening must be 2 in. larger than the stair diameter
  • Each eureka stair kit is shipped with detailed assembly instructions and a DVD, toll-free support is available (888) 782-4758
  • Kit has not been designed to meet the international residential building code, as it relates to spiral staircases
  • Consult your local building department for any questions and specifics regarding compliance with the local building codes prior to purchase
  • Important: consult your local building inspector for specifics regarding compliance with the local building codes

Info & Guides

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Name Eureka 47 in. Black Spiral Staircase Kit Eureka 47 in. White Spiral Staircase Kit Enduro 55 in. Galvanized Steel Spiral Staircase Kit Enduro 63 in. Galvanized Steel Spiral Staircase Kit
Brand Arke Arke Arke Arke
Ratings (2) (0) (1) (3)
Material Steel Steel Steel Steel
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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Package Contents
12 treads, 1 landing, a complete handrail, and all necessary hardware
Stair Part Type

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Customer Questions & Answers

is this galvanized steel?

Asked by: dg
The Eureka model is electro-statically galvanized with a finish paint top coat that is powder coated. It is designed to be used in exterior installations. We recommend however if the installation is in a coastal region, close to the ocean, you use the Enduro Steel which is hot-dipped galvanized to withstand the harsher environmental conditions with the high salt air content.
Answered by: Arke Product Support Team
Date published: 2016-04-06

What glue do you suggest using to adhere stair tread covers?

The tape that was included is useless and I tried some glue but all have blown off in the wind!! Very frustrating for an expensive product. Would appreciate help.
Asked by: Mags
We are sorry for your frustration with the adhesion of the stair tread covers. The Eureka model can be installed in an internal or external installation. The 2-sided tape is included for the internal installations but is not adequate to withstand external climate elements. There should have been a drawing included with the pack of the stair tread covers suggesting a silicone adhesive and showing a S line type of application of the adhesive to the tread covers. We have found that customers have the best success when installing the stair tread covers if they will first use a light sandpaper to "scuff" the bottom side lightly of each tread cover and landing cover. This provides a little better surface for any adhesive to "bite" the PVC material used for the tread covers. We have also found that a high quality silicone adhesive works the best. There is a GE product called Silicone II that is used for Gutters & Flashings that has been an extremely effect product that will actually adhere to both PVC (tread covers) and to the metal (12 gauge steel) of the actual stair treads. Should you have any further questions or need additional assistance, our Customer Sales & Support team can be reached via our toll-free telephone number at (888) 782-4758 or via our email at We hope this information will assist you in completing your Eureka stair installation project and look forward to speaking with you if we can provide any additional assistance.
Answered by: Arke Product Support Team
Date published: 2015-09-20
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