Check a 4.5 m cantilever wall to IS 456 with a 10 kN/m² surcharge, see it fail in sliding, then let the optimiser size a wall that passes.

1. 1Under Design Code / Country, select India.
2. 2In Geometry, set Total height H (underside of base to top of ground) to 4.5 m. Keep the other default dimensions.
3. 3In Backfill, set Surcharge q to 10 kN/m². Keep the default Allowable bearing pressure of 150 kN/m².
4. 4Select Run Design. The wall fails in sliding because the default 1.5 m heel is too short for the extra height and thrust.
5. 5Select Size it for me. A table of passing geometries appears.
6. 6Select Use this on the row marked ✓. The tool writes that geometry into the inputs and runs the design again.