Center Column-Post Extension for Rintal, Gamia, Hoop, and Phola Spiral Staircases
Used to add additional steps to the Base Kit.
Elevate your spiral staircase installation with the Center Column-Post Extension, designed specifically for Rintal, Gamia, Hoop, and Phola spiral stair models exceeding 126" in height. This essential extension ensures structural integrity and seamless functionality for taller staircases, making it the ideal solution for ambitious interior projects.
Key Features:
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Essential for Tall Installations – Required for spiral staircases that surpass 126" in total height, providing the necessary support for additional steps and ensuring long-term stability.
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Internal Support Design – Features an internal pole concealed within the main column, maintaining the staircase’s sleek, uninterrupted exterior appearance while delivering robust internal support.
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Compatibility – Engineered for use with Rintal, Gamia, Hoop, and Phola spiral stair models, guaranteeing a precise fit and reliable performance in both residential and commercial settings.
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Step Accommodation – Specifically required when adding extra steps to achieve greater heights, ensuring each tread is securely anchored and the staircase remains safe and code-compliant.
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Included in Large Spiral Kits – The center post extension comes standard with spiral kits featuring 15 or 16 steps, so you have everything needed for taller configurations right out of the box.
Perfect For:
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Expanding spiral staircases to reach mezzanines, lofts, or upper floors with high ceilings
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Renovations and new builds where extra vertical reach is necessary
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Ensuring code-compliant support for extended spiral stair installations
Upgrade your spiral staircase with confidence using the Center Column-Post Extension. Its hidden internal support preserves your staircase’s modern aesthetic while delivering the strength required for taller, more ambitious designs. Ideal for both contemporary homes and commercial spaces, this extension is the professional’s choice for safe, stylish, and structurally sound spiral stair installations.
Transform your staircase into a true architectural statement-choose the Center Column-Post Extension for unmatched height, safety, and elegance.
Please Read Warranty Here
Shipping & Returns
Shipping & Terms of Sale
In stock stair parts are shipped from our shipping partner's facility or 1883 McFarland Parkway, Alpharetta Georgia 30005. Shipping time is typically 3-7 business days (Monday through Friday excluding holidays). Freight charges will be prepaid by Railing-Pro, if for any reason the customer cancels order after it’s been shipped and it is in transit to the customer, you will be responsible to repay all freight charges for the cancelled shipment.
• Orders placed after 11am EST typically ship the next business day.
• We do not use USPS and cannot ship to a PO Box.
• Orders under 60 pounds typically ship UPS or FedEx Ground.
• Orders over 70 pounds will ship on a pallet using LTL Freight.
• LTL Freight does not include residential lift-gate service (optional cost) and large trucks will not drive on your driveway (street delivery at your residence). Typically, you must off-load the boxes from the back of the truck as the Carrier will not off-load the pallet without the lift-gate option paid. If your house is not accessible you may need to meet them at the local terminal to pick up or at the closest location they can drive too.
• Freight carriers will call and make an appointment with you before delivery.
• Shipping is only to the contiguous US.
• A change in address after it has shipped will result in re-consignment fees that you will be responsible to pay.
• Local Pick-Up is available from our Alpharetta, Georgia Warehouse M-F, 7am to 4pm
For more information, please visit our FAQ page.
Claims – Quality, Damaged or Defective Parts
In the rare event of damaged material, quickly inspect your entire order. We only have 2 (two) days to file a claim with the shipping company due to damaged parts. You will need to send us pictures of the boxes & damaged parts within 2 (two) days of receiving your order. Claims after 2 (two) days will not be accepted. We can re-ship damaged material free of charge by Ground Service (3-5 day delivery). We will not express deliver any order.
Returns, Exchanges & Restocking Fees
We only accept returns up to 30 days from the time you received your parts. Returns will not be accepted on any product that has been used in any way (such as cut, sanded, glued or any action that causes damage to the product) and must be received in the original packaging. There will be a 30 percent restocking charge for all returns and you (customer) IS RESPONSIBLE FOR ALL RETURN SHIPPING COSTS. Sale of Spiral Stairs and Rainbow Attic Ladders are final and cannot be returned. Special Order or non-standard products cannot be returned and are subject to return or cancellation if product or manufacturing has been initiated.
Cancellation & Order Issues
We reserve the right to cancel your order at any time and for any reason. Sometimes orders are unable to be filled due to a variety of reasons including backorders, production issues, listing errors, staffing issues, shipping issues and other situations that may prevent us from being able to complete your order. We will always cancel the order, void the transaction, and refund your money accordingly.
We reserve the right to change our Terms of Sales at any time.