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  • Weight of bar in kg/meter should be calculated as (d2 ÷ 162) where‘d’ is the diameter of bar in mm.
  • ‘L’ for column main steel in footing should be considered as minimum 30cm/as specified.
  • For bent up bar add 0.42d in straight length of bar where‘d’ is the clear depth of beam/slab.
  • For cantilever, beam anchorage length for main steel should be 69D or length of cantilever whichever is greater.

Weight per meter of different dia of steel bar.

  • 6    = 0.222 kg per meter
  • 8    = 0.395 kg per meter
  • 10 = 0.617 kg per meter
  • 12 = 0.888 kg per meter
  • 16 = 1.58 kg per meter
  • 20 = 2.469 kg per meter

With help of this formula you can find any type of dia bar weight

(d2 ÷ 162)


D = diameter of bar in mm.

Calculate number of stirrups in column or beam

  • Number of Stirrups = (clear span/spacing) + 1
  • Lap length in column should be 45D


D = diameter of bar in mm

  • Lap length in beam/slab should be 69D


D = diameter of bar in mm

calculate: How to cutting length of rectangular stirrups?

How to made Circular Stirrups at site

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3 Responses

  1. Tausif alam says:

    Good system

  2. baye balcha says:

    is good information

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