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SAG Calculator
Calculate beam deflection, sag under load, and allowable span limits
Deflection Standard: Maximum allowable beam deflection (sag) for residential ceilings and floors under uniform load is typically limited to $L/360$ (where $L$ is the clear span length).
Beam Span & Load Parameters
Calculation Results
⚠️ Beam sag calculations depend heavily on wood species, grade, and actual cross-sectional dimensions. Always consult local building code span tables and structural engineers for load-bearing members.