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Floor load capacity calculator

Online floor load capacity calculator is a great engineering tool to help you calculate floor strength use it now.

Live Load Capacity

To calculate live maximum floor live load capacity:

  • Allowable extreme fiber stress in tension (in psi or kPa)

  • (Assumed to be 1/2 flexural strength)

  • Thickness of slab (in inches or mm)

  • Modulus of subgrade reaction (in pci or MPa/m)

  • Modulus of elasticity(in psi or kPa)

    (assumed to equal 4000000 psi or 27579028 kPa)

  • Results:

  • Live Load Capacity