Beam Load Calculator

Calculate Beam Load Capacity

About Beam Load Calculations

Beam load calculations determine the maximum safe load a beam can support based on its material properties and dimensions.

Load Capacity Formula:

P = (σ × S) / (SF × L)

Where:

  • P = Maximum load
  • σ = Allowable stress
  • S = Section modulus
  • SF = Safety factor
  • L = Beam length

Material Properties:

  • Steel: 36,000 psi yield strength
  • Concrete: 3,000 psi compressive strength
  • Wood: 1,800 psi bending stress
  • Aluminum: 35,000 psi yield strength

Support Conditions:

• Simply Supported: Both ends pinned
• Cantilever: One end fixed
• Fixed-Fixed: Both ends fixed
• Continuous: Multiple supports

Safety Factors:

• Residential: 1.5
• Commercial: 2.0
• Industrial: 2.5
• Heavy Duty: 3.0

Proper load calculations ensure structural safety and prevent beam failure under expected loading conditions.