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Beam Span & Safety Calculator

Determine safe loads and spans for wood, steel, and concrete beams. Professional structural guidance.

1. System & Material

Imperial Metric

Beam Material (Common Grades)

2. Beam Geometry

Span Length (ft)

Safety Factor (FS)

Width (b) (in)

Height/Depth (h) (in)

3. Loading Conditions

Load Configuration

Total Design Load (lbs) e.g., Total weight spread along the beam.

Analysis Results

Checking...

Max. Induced Bending Stress --

Allowable Material Strength (w/FS) --

Estimated Deflection (Sag) --

Deflection Check (L/360 Standard) --

Update inputs to see analysis.

Important Structural Note:
This tool provides initial structural guidance based on basic engineering formulas. Actual performance depends on precise material grades, connections, and local building codes. Results must be verified by a certified Structural Engineer before implementation.

Construction

Calculate the appropriate beam span for structural projects, factoring in load and material type. Quickly calculate the span and size of wood, steel, or LVL beams for roofs, floors, and decks using our Beam Span Calculator. Includes span tables, app tools, and downloadable PDF charts.

Beam Span Calculator

Published

2026-05-06 23:09:51

Updated

2026-05-06 23:09:51

Author

Taylor Bennett