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Nice1 51 in. Grey Spiral Staircase Kit

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  • Height-adjustable design offers convenience while stepping stairs
  • Spiral design is perfect for square or mezzanine spaces
  • Decay-resistant birchwood treads offer enhanced durability
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Product Overview

The Nice1 51 in. is an adjustable, economically priced spiral staircase kit that features 12 stair treads and landing that complements and adds style to any interior living space. The stair treads are manufactured of multi-layered plywood with a birch wood veneer. The staircase can be easily installed by the homeowner in a single day using common household tools.
  • Adjustable in height from 99-5/8 in. to a maximum of 120-1/2 in.
  • Powder coat finished painted in satin gray
  • Can be installed in a clockwise or counterclockwise rotation
  • Stair treads and landing are made of multi-layered plywood with a birch wood veneer and a polyurethane protective coating
  • Extruded gray PVC handrail
  • Rise between stair treads is adjustable from 7-7/8 in. to 9-1/4 in.
  • Interior installation only
  • 3 spindles per tread
  • Clockwise or counterclockwise, interior installation, designed for use in square, round or mezzanine applications
  • Complementary accessories - model K21020 gray eureka balcony rail kits
  • To allow for proper installation, the finished opening must be 2 in. larger than the stair diameter
  • Each nice1 stair kit is shipped with detailed assembly instructions, 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

Additional Resources

From the Manufacturer

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Product Depth (in.)
51 in
Product Height (in.)
120.5 in
Product Width (in.)
51 in


Maximum Floor to Floor Height
120.5 in
Minimum Floor to Floor Height
102.75 in
Package Contents
Staircase kit, treads, metal components, hardware
Platform Rail Height
39.37 in.
Platform Rail Quantity
1 Platform Rail
Product Weight (lb.)
350 lb
Stair Part Type
Tread Count

Warranty / Certifications

Manufacturer Warranty
1-Year for manufacturing defects

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
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Customer Reviews

  • 4
    out of 5 reviews
  • 100%recommend this product
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Showing 1-5 of 5 reviews
excellent quality
The Arke Nice 51 spiral staircase is a well-engineered product. The directions included with the kit are clear, and the quality of the kit's parts is impressive. As long as you or someone you know has basic carpentry skills -- measuring and sawing; drilling; using an Allen wrench -- assembling the stairs is not too difficult. (It is time-consuming, though.) If you are looking for a reasonably priced staircase, the Arke Nice 51 is worth considering. Five stars.
  • Verified Purchase
Fairly easy to assemble the had rail is a challenge...
Fairly easy to assemble the had rail is a challenge though
    The kit was terrible to install and poorly built! The...
    The kit was terrible to install and poorly built! The directions are terrible and have no writing at all to explain anything just bad pictures that don’t explain it well. It’s mostly in metric which I guess would be fine in Canada, but needs better standard measurements. The railing was the worst!
    • Verified Purchase
    Easy to assemble. Great set of stairs....
    Easy to assemble. Great set of stairs.
    Response from Arke Product Support TeamDec 14, 2017
    Thank you for your 5 star review of the NICE 1 staircase kit. We are very pleased you are happy with your purchase and the ease of installation. Should you ever need future assistance, please contact our Customer Sales & Support team via our toll free telephone number at (888) 782-4758 and our team will be happy to assist. Best regards. ArkeSupportTeam
    • Verified Purchase
    Very easy to assemble. Looks great.
    Very easy to assemble. Looks great.
    Response from Arke Product Support TeamMay 19, 2017
    On behalf of the entire ARKE team, we want to thank you for your kind words. It is the satisfaction of our customers that is paramount in our business. If you ever need assistance in the future, please feel free to contact our Customer Service & Support team via our toll free telephone number at (888) 782-4758. Again, thank you very much. ArkeSupportTeam
    • DIY
    • Verified Purchase
    • Recommended
    1 found this review helpful
    Showing 1-5 of 5 reviews