How do I simulate a stair stringer?

Open this page and use the live 3D FEA Space Frame tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a stair stringer from your own measurements.

Use case · powered by 3D FEA Space Frame

3D FEA Space Frame for a stair stringer

Simulate a stair stringer live in your browser. This runs the real 3D FEA Space Frame solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

3D FEA — Space Frame StudioLive

3D direct stiffness · drag to orbit

Controls

A 3D tower under a lateral + vertical load at the top. Drag to orbit. Members colored by axial force.

Presets

Lateral load

Deformation ×

▶ Run in Python

Data Inspector

Nodes16

Members40

DOF48

Solveconverged

Max displacement3.161

Governing equation

K u = F, k_{e} = \frac{E A}{L}, F_{x} = 15 (40 members)

Reading this result: Combined lateral 15 and vertical load bends the frame; peak node displacement is 3.161, and members recolor by axial force, cyan for tension and pink for compression.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full 3D FEA Space Frame tool models a stair stringer with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with 3D FEA Space Frame

3D FEA Space Frame for a cantilever balcony 3D FEA Space Frame for a bridge girder 3D FEA Space Frame for a floor joist 3D FEA Space Frame for a roof rafter 3D FEA Space Frame for a steel beam 3D FEA Space Frame for a timber deck 3D FEA Space Frame for a crane boom 3D FEA Space Frame for a retaining wall

Other ways to simulate a stair stringer

2D Fluid (CFD) for a stair stringer 3D CFD for a stair stringer FEA Truss for a stair stringer Meshing + BCs for a stair stringer RLC Circuit for a stair stringer Beam Deflection for a stair stringer

Frequently asked questions

How do I simulate a stair stringer?: Open this page and use the live 3D FEA Space Frame tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a stair stringer from your own measurements.