T-Section Properties Calculator
Centroid, I and both section moduli for a tee — the asymmetric workhorse.
Asymmetry gives TWO section moduli — the stem tip is much further from the centroid and reaches yield first. T-sections love moments one way and hate them the other.
Formula
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
T-Section Properties Calculator is a free t section centroid for structural engineers, fabricators and site engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About T-Section Properties Calculator
Centroid, I and both section moduli for a tee — the asymmetric workhorse. The calculation implements ȳ = ΣAᵢyᵢ/ΣA; I = Σ(I₀ᵢ + Aᵢdᵢ²) (Composite-area method — engineering statics). Asymmetry gives TWO section moduli — the stem tip is much further from the centroid and reaches yield first. T-sections love moments one way and hate them the other.
How to use T-Section Properties Calculator
- 1Enter Flange width in mm.
- 2Enter Flange thickness in mm.
- 3Enter Stem depth (below flange) in mm.
- 4Enter Stem thickness in mm.
- 5Read Centroid from top, I about centroid, S (top fibre) instantly — no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use T-Section Properties Calculator?
- ✓Implements the standard formula — ȳ = ΣAᵢyᵢ/ΣA; I = Σ(I₀ᵢ + Aᵢdᵢ²)
- ✓Reference cited on-page: Composite-area method — engineering statics
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the T-Section Properties Calculator use?+
It computes ȳ = ΣAᵢyᵢ/ΣA; I = Σ(I₀ᵢ + Aᵢdᵢ²), per Composite-area method — engineering statics. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
Asymmetry gives TWO section moduli — the stem tip is much further from the centroid and reaches yield first. T-sections love moments one way and hate them the other.
Can I use this for real structural design?+
It implements the exact textbook/code formula cited below the result and is ideal for sizing, checking and learning. Final designs should be verified by a qualified engineer against the full code with all load cases.
Is the T-Section Properties Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
Related Engineering tools
Reynolds Number Calculator
Compute Re from density, velocity, pipe diameter and viscosity — with instant laminar/turbulent classification.
● LiveLaminar vs Turbulent Flow Classifier
Classify hydraulic-oil or process-fluid flow regime from kinematic viscosity, line velocity and tube bore.
● LiveBernoulli Equation Solver
Solve downstream pressure between two points from velocities, elevations and fluid density (ideal, lossless).
● Live