Concrete Slab Maximum Length – what should be maximum slab length?

• Thickness of reinforced slab (in inches or mm)

• Yield strength of steel reinforcement (in psi or kPa)

• Steel reinforcing ratio (in %)

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• Slab Length(in ft)

  

Formula:

L = ( 0.00047hr (fsS) ^2 ) ^ ( 1/3 )

  Where,

    L = Slab Length,,

    hr = Thickness of reinforced slab,

    fs = Yield strength of steel reinforcement.

    S = Steel reinforcing ratio.

This free online calculator will calculate maximum length of slab, it is a free civil engineering tool.