Answer:
Expandify homes use a steel stump footing system designed for permanent Class 1a dwellings.

Foundation types include:

• Standard BMSA footing kit – Included with both DIY and Complete Packages, suitable for most H1-class soils and a post height up to 750mm
• Custom-engineered foundations – Required for complex sites (sloping, poor soil, flood-prone, etc.), quoted separately

Expandify assesses your soil and site profile during the Full Site Assessment and recommends the correct footing system before you enter contract.