Header Beam Sizing Calculator
Calculate required header and beam sizes for openings based on span and loads
IRC 2021 Table R502.5AWC Beam Design Formulas
Enter values and click Calculate
Calculate required header and beam sizes for openings based on span and loads
Width of area supported by beam
Typical: 10-15 psf for floors, 15-20 psf for roofs
Typical: 40 psf for floors, 20 psf for roofs
Check local building code for required snow load
Enter values and click Calculate to see results.