Spiral & Modular Stair Kits

Our Products:

Frequently Asked Questions

  1. How long will it take to receive my stair kit?
  2. What do I need to know to order these stairs?
  3. What size of finished opening do I need to install a spiral staircase?
  4. Do you have a list of certified installers who could install these kits for me?
  5. Can I get the wood treads in a different color or unfinished/not sealed?
  6. You state that the maximum height per stair kit is 12' 4" - can I stack two stair kits together to reach approximately 20 feet?
  7. Do you have a spiral staircase kit for exterior installations that is painted?
  8. Can the Enduro Steel exterior spiral staircase be painted?
  9. Are there any options for different handrails and treads other than those shown?
  10. Which of your products meet the IRC building code?
  11. How do I determine where the bottom step will end up in conjunction to the landing of my spiral staircase?
  12. Your stair kits come with a triangular landing - can I get a square or rectangular one?
  13. Do you manufacture safety gates for your staircases?
  14. The Kompact shows a support pole utilized between tread 5, 6, or 7 - can I get another pole for higher up?
  15. What if I am attaching the base of my stairkit to wood. Do I need to do anything different in this situation?
  16. I am installing the Enduro onto a concrete footing. What size pad should I use?

Q: How long will it take to receive my stair kit?
A: All ARKE products are stocked in our warehouses in the US market and are shipped to arrive anywhere in the contiguous United States within 10 days from the time your order is placed and your payment is authorized.
Canadian deliveries could take up to three weeks to be delivered due to customs clearance for these shipments.

Shipments to Alaska and Hawaii can take up to four weeks for delivery.

Q: What do I need to know to order these stairs?
A: There are five basic questions you need to answer to determine which product to purchase. These are as follows:

By answering these five simple questions, you will be able to choose the best ARKE staircase to fit your needs.

Q: What size of finished opening do I need to install a spiral staircase?
A: It is recommended that the finished space available is at least two inches greater than the total diameter of the spiral staircase or total width of the modular staircase. This will allow for clear passage of the handrail and eliminate a “pinch point” of the handrail against a wall or upper floor opening.

Q: Do you have a list of certified installers who could install these kits for me?
A: The ARKE staircase kit is a Do-It Yourself project and can easily be installed by the homeowner with common household tools. Most installations can be accomplished in a single day.

Q: Can I get the wood treads in a different color or unfinished/not sealed?
A: The ARKE staircase kits stocked in our US warehouses are only available in a natural, light stain finish with a polyurethane protective coating. You can choose from either European Beech wood or European Red Oak treads depending on the model.

Additional stain colors are available on a Special Order basis directly from our factories in Italy. Special Orders generally have a lead time of 12-14 weeks to be delivered from the time of purchase.

Q: You state that the maximum height per stair kit is 12' 4" - can I stack two stair kits together to reach approximately 20 feet?
A: Yes, this can be done by building the bottom staircase and securing the landing for structural integrity. The second stair kit can then be built upon that landing.

Q: Do you have a spiral staircase kit for exterior installations that is painted?
A: Yes. The Eureka series of exterior spiral staircase kits is available in three finished colors…Hi-Gloss Black, Hi-Gloss White, or Satin Grey. These are all premium powder coated paint finishes that will withstand the environmental conditions for exterior installations.

Q: Can the Enduro Steel exterior spiral staircase be painted?
A: The Enduro Steel spiral staircase is protected by a hot-dipped galvanized finish to provide years of maintenance free use. It is not recommend to paint the Enduro Steel model, but instead choose the Eureka finish painted spiral staircase for your exterior project.

However, if you must paint the Enduro Steel model, the following steps should be followed:

Q: Are there any options for different handrails and treads other than those shown?
A: Additional handrail options and wood tread stain colors are available on a Special Order basis directly from our factories in Italy. Special Orders generally have a lead time of 12-14 weeks to be delivered from the time of purchase.

Q: Which of your products meet the IRC building code?
A: All of the ARKE 5’ 3” diameter spiral staircase kits will meet the currently established IRC building code requirements. However you should always check with your local building authority regarding any possible codes that are specific to your geographic area or municipality.

Q: How do I determine where the bottom step will end up in conjunction to the landing of my spiral staircase?
A: The standard spiral staircase kits are designed to make a complete 360 degree turn. Therefore, the first step will be directly underneath the landing. You can use our stair builder configurator program on our website for the model of your choice and print a document on your printer to show you the position of each stair tread for the height and dimensions of your project.

Q: Your stair kits come with a triangular landing - can I get a square or rectangular one?
A: The triangular landing design of our standard staircase kits is designed to be a universal landing that will fit a round, rectangular, and/or a mezzanine style opening. Additional style landing are available on a Special Order basis directly from our factories in Italy. Special Orders generally have a lead time of 12-14 weeks to be delivered from the time of purchase.

Q: Do you manufacture safety gates for your staircases?
A: Yes. The Kalypto Child Safety gate is available for your purchase and can be installed on any of the ARKE staircase kits for interior installations.

Q: The Kompact shows a support pole utilized between tread 5, 6, or 7 - can I get another pole for higher up?
A: ARKE offers only one length of support pole for the Kompact staircase kit. Generally, in most installations this is the only additional support that is needed. However, in some installations if additional support is needed or desired, you can have this manufactured by a local supplier to the height desired. ARKE offers that necessary connection part that will allow it to be attached to the metal structure of the staircase at this additional support position.

Q: What if I am attaching the base of my stairkit to wood. Do I need to do anything different in this situation?
A: All the stairkits come with concrete molly anchors. If you are securing the kit into wood, please replace those with similar sized lag bolts. The "tools needed" page of our manual show strange looking metric drills. These are masonry bits for concrete. If you are securing into wood use a regular drill appropriate to the size of the lag bolts you just purchased.

Q: I am installing the Enduro onto a concrete footing. What size pad should I use?
A: Most people will pour a pad the same diameter as the stairkit. This allows for the 8 3/4" diameter base plate to be secured, as well as the FO1 "foot" holding in place the very first baluster on the bottom step. The depth of the pad would depend on frost and climate conditions in your area, and might require checking with your local inspector.

Glossary of Stair Terms