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THE FEUTEX TOOLKIT

Symmetric I Section Properties

Find area, strong-axis inertia and section modulus of an ideal welded I profile.

Civil Engineering workspace● Runs in your browser
01 Your input
02 Your result
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FormulaI=[bh³−(b−tw)(h−2tf)³]/12; Z=2I/h.
Sources and model references

Worked example

Inputs

Flange width
0.15 m
Total depth
0.3 m
Flange thickness
0.02 m
Web thickness
0.01 m

Expected results

Section area
0.0086 m²
Strong-axis inertia
0.0001324466667 m⁴
Elastic section modulus
0.0008829777778 m³

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "width": 0.15,
  "height": 0.3,
  "flange": 0.02,
  "web": 0.01
}

Accuracy and scope

Ideal sharp corners; not a standard rolled-section lookup or local-buckling check. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.