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THE FEUTEX TOOLKIT

Rectangular Hollow Section Properties

Calculate area, two bending inertias and elastic section moduli.

Civil Engineering workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaSubtract the centered inner rectangle from the outer rectangle.
Sources and model references

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": 0.1,
  "height": 0.2,
  "wall": 0.01
}

Accuracy and scope

Sharp-corner idealization; manufactured tube corner radii change actual section properties. 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.