Protection Works - Pool Excavation Calculator

Preliminary screening for proposed pool excavations using 45 degree clay-soil and 30 degree sandy-soil danger-zone assumptions.

Calculator mode

Assessment Minimum setback

Distance from edge of pool shell to boundary

Measure horizontally from the nearest edge of the proposed pool shell to the relevant boundary fence/property boundary.

If excavation extends beyond the edge of the pool shell, use the distance from the actual excavation edge to the boundary where known.

Maximum pool excavation depth

Enter the maximum depth of excavation below existing ground level, not the pool water depth.

Edge Type

Normal Right Angle Vertical wall with square bottom corner. Safety Ledge 600 mm deep by 500 mm wide step. 60° Radius Curved profile, calculated conservatively.

Is there a building or structure on the neighbouring property near this boundary?

Yes No

Distance from boundary to neighbouring building

Measure horizontally from the property boundary to the nearest part of the neighbouring building or structure.

Do you know the neighbouring building footing depth?

No Yes

Do you have a soil test showing the soil profile?

No Yes

No soil test mode uses two theoretical scenarios: 45 degree clay and 30 degree sandy soil / fill.

Cross-section

Danger-zone diagram

Common X/Y scale