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ISMC C-Channel & Steel Weight Calculator

Calculate weight of ISMC C-channels (ISMC 75 to ISMC 400), rod weight, and steel round bars.

m
₹/kg
Unit weight
9.56 kg/m
ISMC 100
Weight per piece
57.36 kg
Total weight
57.36 kg
0.057 tonnes

How this is calculated

Unit weights are the standard IS 808 values for rolled sections, not a derived figure.

9.56 kg/m × 6.00 m × 1 = 57.36 kg

ISMC C-Channel & Steel Weight Calculator: how it works

Channel and beam weights come from published section tables, not from a formula, because the profile is too complex to approximate usefully.

Why tables rather than formulas

A channel has a web, two tapered flanges, root radii and toe radii. Approximating it as rectangles is far less accurate than for an angle, so IS 808 tabulates the unit weight of every standard section directly.

Common sections

Sectionkg/mTypical use
ISMC 757.14Light framing, purlins
ISMC 1009.56Purlins, secondary members
ISMC 15016.8Beams in light structures
ISMB 20025.4Primary beams
ISMB 30046.0Heavier beams and columns
ISMB 40061.6Long-span beams

Channel or beam?

  • Channels are asymmetric about the vertical axis, so they twist under load applied away from the shear centre.
  • Beams are symmetric and are the default for primary bending members.
  • Channels suit purlins, bracing and members fixed against a surface.
  • Two channels bolted back to back form a symmetric built-up section.

Based on

  • IS 808 section tables

Frequently asked questions

9.56 kg per metre, per the IS 808 table. A 6 metre length weighs 57.4 kg.

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