Baluster Spacing
Balusters (or spindles) are the vertical bars used in railings. For safety, many building codes require that a 4-inch sphere cannot pass between balusters.
Actual Spacing = [Length − (Count × Width)] / (Count + 1)
Last updated: April 13, 2026
Balusters (or spindles) are the vertical bars used in railings. For safety, many building codes require that a 4-inch sphere cannot pass between balusters.
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