Make the Right Selection

Spiral Staircases come in many different sizes and styles. How do you know which will best fit your needs? There are several things to consider.


The most popular Spiral Stairs are made of steel. Wood treads & landings, and aluminum handrails are offered as an option. These are your best values, and we have a full line of the most common sizes available for purchase here on Spiral Stairs are also available in Oak and Victorian styles, but these styles -- while beautiful -- tend to be more costly. We currently don’t offer Oak and Victorian styles in our web store. However, if you are interested in learning more about Oak, Victorian, or other Custom Spiral Staircases, we suggest you click here.


All non-galvanized Spiral Stair Kits from the Spiral Stair Warehouse are shipped with a Black Enamel Primer Coat. You can paint your staircase any color you'd like to match your decor. Wait until your staircase is assembled before you paint to avoid scratches that might occur during installation. Always use an oil-based enamel paint -- do not use latex paint. Exterior staircases should be painted with an oil-based enamel paint that contains a rust-inhibiting additive. Galvanized staircases must be allowed to weather before painting. Contact your local paint store for an appropriate primer and paint for galvanized surfaces.


Will your Spiral Staircase be indoors, or will it be located outdoors as a means of access to a deck or balcony? If outdoors, you can’t have optional wood treads because they would eventually deteriorate due to rain, snow, or other moist air conditions such as living near the seashore. Instead, consider adding optional galvanized treads. Galvanizing protects your staircase from the elements.


Whether your Spiral Staircase is indoors or outdoors, consider how it will be used before you determine the proper diameter of the model you want to buy. Spiral Stair Warehouse offers Spiral Stairs in diameters (widths) ranging from 3-foot 6-inches up to 5-foot 6-inches. These are the most common widths in use today. While our 3-foot 6-inch, 4-foot, and 4-foot 6-inch diameter Spiral Stair Kits are very popular for a variety of uses, consider whether they are the only means of access to an upper floor or balcony. Narrower-width Spiral Staircases can be more challenging when carrying large or otherwise bulky items between floors. And if you have small children or pets that will use the staircase frequently, a wider-width staircase (such as our 5-foot model) may be more desirable.

Regardless of whichever diameter Spiral Stair model you choose, remember that the well opening you must cut in your ceiling (if not installing to a balcony) must be at least 2 inches wider than the diameter of the staircase you purchase.

If your Spiral Stairs must conform to common building codes, you must select our 5-foot diameter or 5-foot 6-inch diameter models. Diameters that are less than 5-foot are not code conforming. Our 5-foot and 5-foot 6-inch staircases come equipped with Triple-in-Between Spindles and a 1 ¼" Aluminum Coil Handrail as standard accessories. Triple-in-Between Spindles conform to code that require less than 4 inches between spindles on each step. The 1 ¼" Aluminum Handrail provides superior stability. Check with your local municipality to find out if building codes are applicable in your area.

Click here to see our detailed Metal Spiral Blueprint/Standard Plan

All of our Spiral Staircase models are available in heights from 7-foot 2-inches (our 10 Riser model) up to 12-foot 8-inches (our 16 riser model). The number of risers (steps) depends upon the height of the staircase, and is automatically calculated for you in our online store. Call us at 1-877-782-4779 or email us if your height falls out of this range.

Click here to configure a sample stair layout


We offer a limited line of the most popular add-on items to accessorize your Spiral Staircase in our online store. Oak Treads and Landing with an Oak Top Cap can provide added beauty and elegance to your staircase. If you prefer standard metal treads, consider our Diamond Plate option for better traction while climbing or descending steps. Single, Double, or Triple-In-Between Spindles on each step add beauty and can improve stability and cut down on the space where children or small objects can "squeeze through the cracks". Aluminum Scroll Ends for your handrail and Riser Bars under each step make your staircase even more attractive.


Installing your Spiral Staircase is relatively easy, especially if you are experienced in home remodeling or are a handy do-it-yourselfer. Standard tools are required. All kits purchased from the Spiral Stair Warehouse come with detailed, easy-to-understand instructions. There is also helpful information about parts here and a visual assembly tutorial here. If you find installation too daunting, we recommend hiring a local contractor to install your staircase.

Don’t forget to check out our Frequently Asked Questions to learn even more information about our Spiral Stairs and how to install them.

If you still need more information to help you decide which Spiral Stair is right for you, please call us at 1-877-782-4779 during the hours of 8am - 5pm ET Monday thru Friday, or 8am - Noon on Saturdays. Our friendly, knowledgeable salespeople will be glad to assist you. If you would prefer to email us your questions, click here. We will respond to you within 24 hours during weekdays.