Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Students · Soil Bearing

Soil Bearing for a cantilever balcony

Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a cantilever balcony live below — adjust the inputs and watch it respond, right in your browser.

Soil Bearing Capacity (Terzaghi)Live

foundation design

Allowable bearing pressure

400kPa

Allowable load ≈ 801 kN per metre of footing

Controls

Presets

Cohesion c (kPa)

Friction angle φ (°)

Unit weight γ (kN/m³)

Footing width B (m)

Embedment depth (m)

Factor of safety

Terzaghi's equation predicts the ultimate bearing capacity of a shallow footing as the sum of cohesion, surcharge, and self-weight terms, each with a bearing-capacity factor that grows sharply with the soil friction angle. Dividing by a factor of safety gives the allowable pressure. Educational tool, not a geotechnical design.

▶ Run in Python

Data Inspector

Nc30.1

Nq18.4

Nγ22.4

Ultimate qult1201 kPa

Governing equation

q_{u} = c N_{c} + γ D_{f} N_{q} + \frac{1}{2} γ B N_{γ} = 10 (30.1) + 27 (18.4) + \frac{1}{2} (18) (2) (22.4) = 1201 kPa

Reading this result: Mixed c-φ soil: all three terms contribute — deeper embedment and a wider footing both push the ultimate capacity higher.

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

or unlock everything with Pro →

Also for:Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders General version →

More with Soil Bearing

Soil Bearing for a bridge girder Soil Bearing for a floor joist Soil Bearing for a roof rafter Soil Bearing for a steel beam Soil Bearing for a timber deck Soil Bearing for a crane boom Soil Bearing for a retaining wall Soil Bearing for a stair stringer

Frequently asked questions

Is this good for students?: Yes — this version of "Soil Bearing for a cantilever balcony" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.