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Baluster Calculator
Calculate baluster count and exact spacing for deck railings
Building Code Rule: Standard safety codes require that a 4-inch sphere cannot pass through any opening between balusters (Max Gap ≤ 4.0 inches).
Railing Dimensions
Calculation Results
⚠️ Always verify local residential building codes (IRC) regarding guardrail baluster spacing, height requirements, and load-bearing standards before installation.