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Install Stair Railings questions, answered by experts

It depends on whether you’re looking at residential or commercial buildings. For residential buildings, the 2018 International Residential Code asks for a maximum riser (or rise) height of 7 3/4 inches and a minimum tread depth (or run) of 10 inches.

For fixed stairs in commercial buildings, OSHA requires a rise between 6 and 7.5 inches, with a run between 10 and 14 inches. The standards are different for spiral staircases.

Several signs suggest it’s time to replace your stair railing. Look for wobbling or looseness whenever you put any weight on it. Of course, visible cracks, splits, rust, or corrosion often indicate it’s time for a change. Missing or damaged balusters should be replaced, as should any outdated designs that don’t meet current building codes.

The four-inch ball rule for railing is a rule of thumb used when installing or replacing railings on stairways and decks. It refers to the gaps that naturally occur between balusters or other infills in a railing system. The rule states that a four-inch sphere should be unable to pass through any of the gaps. This helps prevent the possibility of people or animals slipping through.

Yes, professionals will offer tailored solutions to fit architectural and personal style preferences.

You have a little flexibility when installing a handrail against a wall. The minimum distance between the two must be at least 1.5 inches, and commercially available handrail bracket hardware accounts for that minimum. The maximum distance a handrail can be from a wall is 4.5 inches, provided it doesn't impede the walking area. 

The Weir, KS homeowners’ guide to stair railing installation services

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

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