What is the minimum spacing for balusters in deck stair handrails?

The minimum spacing for balusters in deck stair handrails is designed to prevent children from being able to squeeze through the railings, ensuring safety on deck areas. The requirement that a 4 3/8 inch diameter sphere should not pass through the baluster spacing is a standard for many building codes, including those associated with residential decks. By preventing a sphere of this size from passing through, it reduces the risk that children could get stuck or fall through the railings.

This guideline helps ensure that baluster spacing is small enough to keep occupants safe while still allowing for adequate visibility and ventilation. Barriers such as these are critical for safety in home construction, especially in outdoor areas where children may play. Adhering to this standard helps to meet safety regulations and provides peace of mind for homeowners and parents.