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  • Average homeowner rating star icon4.6
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*The Angi rating for Stair Service companies in Mapleton, UT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Stair Service needs.

*The HomeAdvisor rating for Stair Service companies in Mapleton, UT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Stair Service needs.

Last update on February 21, 2026

Stair Companies questions, answered by experts

Most building codes require that railing spindles (also known as balusters) on decks or stairs be spaced no more than four inches apart. This safety standard is often called the '4-inch sphere rule,' which means a sphere with a 4-inch diameter should not be able to pass through the opening between balusters. This rule is in place to prevent small children and pets from slipping through the railing. For the same reason, the space between the bottom rail and the deck or floor surface should also be no more than four inches. As a general guideline, professionals often install three balusters per foot of railing. However, since specific requirements can vary by location, it is essential to check your local building codes to ensure compliance before starting your project.

The standard distance between deck stair stringers is 12 to 16 inches. However, these numbers vary by building material, so reference the maximum span for the material. For example, some composite materials call for a maximum distance of 10 inches to maintain their structural integrity. 

As a general rule, never leave more than 16 inches of space between your stringers. Deck stairs have higher load-bearing demands than the walking surface of the deck, so it’s important not to overshoot the space between your stair stringers.

The lifespan of a spiral staircase depends on the material used and the level of maintenance provided. Metal and composite staircases can last up to 30 years or more with proper care, while wood staircases may require refinishing or repairs over time. Regular maintenance extends the life and appearance of your staircase.

Stair runners are often easier to install than a standard carpet because the latter must be cut to fit the stairs with extra steps taken to prevent fraying at the edges. Stair runners offer extra decorative options, padding, and traction to reduce the risk of falls. They can also offer a nice way to transition from one flooring type, like cement or epoxy floors to softer carpeting on an upper story of the home.

A properly installed spindle should last decades or more, depending on the material, environmental conditions, and wear-and-tear from teething puppies or kids clunking bags up and down the stairs. Wood spindles may need more frequent maintenance and eventual replacement compared to metal or composite alternatives. Regular inspection and maintenance will help maximize their lifespan.

The Mapleton, UT homeowners’ guide to stair services

From average costs to expert advice, get all the answers you need to get your job done.

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