Model # K33024

Internet #100664002

Store SO SKU #973468

Arke Karina White Modular Staircase Kit


Karina White Modular Staircase Kit

$156672 /each
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Frequently Bought Together

Product Overview

The space-saving design of the Karina modular stair makes it the ideal staircase to use in replacement of the traditional pull-down attic stairs, when converting an attic into a loft, office, or bedroom. This staircase can be easily installed by the homeowner in a single day using common household tools. Each Karina staircase kit is shipped complete with detailed assembly instructions and a DVD to assist in your installation. Toll-free support is available (888) 782-4758.

  • All in-one complete kit - includes: 11 alternating clear sealed scratch resistant European beech wood treads, powder-coated steel structure in hi-gloss white, 15 round railing spindles, gray connectors and hardware
  • Adjustable in height from a range of 90-15/16 in. to110-1/4 in.
  • With two additional risers, can be extended to a maximum height of 128-3/4 in. (model K33027)
  • Intended for interior use only
  • Rise between treads adjustable from 7-15/32 in. to 9-1/4 in.
  • 4 different configurations, clockwise or counterclockwise
  • To allow for proper installation, the finished opening must be 2 in. larger than the stair diameter
  • 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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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Hardware Included
Package Contents
All-in-one complete unit: 11 alternating treads, balusters, handrails, hardware and accessories included, nothing to paint, weld, stain or seal In stock for immediate delivery to most US.
Product Weight (lb.)
Stair Part Type

Warranty / Certifications

Manufacturer Warranty
1-Year for manufacturing defects

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Customer Questions & Answers

What is the minimum parameter needed?

I I only have about 3' x 3' floor space to not block the active side of a french door. ls it enough for the curve? ( can't do a straight one as it will go against the inactive side of french door)
Asked by: PC
For 96" to 110" units, the space available of 3' x 3' would not be enough to allow for the installation.
Answered by: CommunityAnswer
Date published: 2016-09-06

can this be purchased for straight installation at the listed price and if not what is needed to ...

can this be purchased for straight installation at the listed price and if not what is needed to allow for straight installation and any extra cost
Asked by: Bill
The KARINA can be installed in 4 basic configurations, including a straight-line run, at the time of the installation. The basic kit comes with a handrail on one side. If a handrail is needed or desired for both sides, a Second-side handrail can be purchased. Should there be additional questions or further assistance is needed, please contact our Customer Sales & Support team via our toll free telephone number at (888) 782-4758.
Answered by: Arke Product Support Team
Date published: 2017-05-30

What is the minimum parameter for a curved staircase with a ceiling height of 102"

What is the minimum parameter for a curved staircase with a ceiling height of 102"
Asked by: Mack
For an installation to the noted height of 102" with a curved installation, there is a range of 35 1/2" to 39 1/2" parameter space needed to complete the installation. Should you have further questions or need additional assistance to plan your project, 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. Thank you for your inquiry.
Answered by: Arke Product Support Team
Date published: 2016-12-05

Where is the max height?

Its says 9'3'' for height, is that from the top stair or top of the wall mount plate? We have 10 ft to go up and if its from the top stair that would be a last step up of 9 inches. If it is measured from the top wall plate then I have no idea what that last step would be and if I can buy it. We would be doing configuration 'B' from the instructions.
Asked by: Charles
The measurement is always calculated from the "finished floor" to "finished floor" height of the planned installation. To be able to install to the noted 10' (120"), you would need to purchase the standard Karina staircase kit PLUS one additional stair tread riser kit. For more information regarding the installation, you can visit our website at and access the landing page for the Karina staircase kit. On this landing page, if you scroll down you will be able to view an installation video and also download and print a set of the installation instructions. If you have further questions, please contact our Customer Sales & Support team via our toll free telephone number at (888) 782-4758 and our team will be happy to answer any questions and assist you with your planned project.
Answered by: Arke Product Support Team
Date published: 2016-09-03
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Customer Reviews

Karina White Modular Staircase Kit is rated 4.8 out of 5 by 5.
Rated 4 out of 5 by from Great DIY staircase solution for tight spaces This is a great solution if you have a tight space that you need to put a staircase in. It's not trivial to calculate the space it's going to take if you have a curve in your design. You need another person to help you install this. The spine is quite heavy and it takes two people to put it in place and adjust all the different pieces. Give yourself 2 days to install this. The end product looks good and is of good quality.
Date published: 2011-12-20
Rated 5 out of 5 by from Great Product! I am buying my second one! I have 2 small loft spaces and very tight entries to each. These stairs are absolutely great ! A little awkward to get used to the Left foot first on the ascent and a bit of a perceptual challenge ....BUT I placed a sticky back plastic no skid circle in the middle of each step so when traversing, each step is easily discriminated! Gotta love those italians for making such a great product!
Date published: 2012-10-20
Rated 5 out of 5 by from Wonderful stairway for tight spaces This stairwell was very easy to install, instructions were quite thorough. It was quite easy to fit it into the space we have. All high quality materials, and comes in different metal finishes to match decor. Home Depot shipping was prompt and all items came in great shape. It does take a little time to get used to the alternating tread stair since I've never used one before. Definitely don't use the stairs in socks, but I guess that would go for all wood steps :)
Date published: 2011-03-25
Rated 5 out of 5 by from Quality stairs for close quarters Bought these as a permanent stairway for our remodeled loft space. They are high quality, look great, and relatively easy to install...I say "relatively" and not "absolutely" because you do have to understand the rise over run concept for stairs, and adding a turn as we did does complicate it a bit. Overall we're very pleased with the end result. They're perfect for tight spaces and have a pleasing, high end look when complete.
Date published: 2012-09-25
Rated 5 out of 5 by from I love this staircase! In our cottage, in a small living room, we needed a staircase to a little loft - space was limited! This staircase was the perfect solution. We purchased and installed it about a year and a half ago, so it's possible that the documentation and instructions are better now, but the weren't that easy at the time. There are now youtube videos that help with installation of the stairs and balcony railing. The staircase itself is solid, well-built, and attractive. We joked, and nicknamed it "stairasaurus" because the "vertebrae" that make up the curved support so reminded us of a dinosaur's skeleton. The thick hardwood treads look great, and we love the contrast with the white, powder-coated metal. The parts which attach railings et cetera are grey plastic but they are sturdy and well made. For anyone who worries that an "alternate tread" staircase is difficult to use - it's not difficult at all! I've always loved the gracefulness of a circular or spiral staircase, but they are not easy to walk on, due to the "pie shaped" steps. In contrast, the alternate treads require only that you start up or down on the correct foot, and then it's great! [Note: Somewhere in the internet there's a video by another stair manufacturer that shows a person walking up and down an alternate tread staircase, to illustrate that it does not pose a problem]. We are delighted with this staircase. It allowed us to have an interesting and attractive stair without the usual waste of space. It takes up half (or a third) the space of a traditional staircase. Additionally, its open and airy look is very attractive and "spacious" in our small space. At almost $1500 it's not cheap, but it is definitely worth the price.
Date published: 2014-11-21
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