- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 02 Mar 2018
Strip foundations (or strip footings) are a type of shallow foundation used to provide a continuous, level (or sometimes stepped) strip of support to a linear structure such as a wall or closely-spaced rows of columns built centrally above them.
Where the natural surface of the ground is sloped, the most economical solution may be a stepped foundation. In this case, the foundation takes the form of a series of concrete horizontal steps following the slope of the ground.
This helps to minimise the amount of excavation and below-ground wall construction that would otherwise be required. Stepped foundations can also be used to transition from deep foundations to shallow foundations, and at corners and intersections.
Regularly stepping foundations also avoids abrupt and excessive changes in level that could cause a weakness resulting in movement. Similarly, abrupt and excessive changes in foundation depths should be avoided at corners and intersections by the introduction of stepping.
Each step in the foundation should be no higher than the thickness of the foundation. The foundation at the higher level should also overlap the lower foundation, typically by at least twice the height of the step, or by the thickness of the foundation, or by at least 300 mm (whichever is greatest).
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
Organisations will collaborate on infrastructure initiatives.
Technology informs procurement and planning practices.
BSRIA releases market sector growth projections.
Designing for durability and resilience.
Do plans to connect infrastructure and housing stack up?
1 minute review of CAMRA’s guide to historic drinking dens.
Their complex heritage remains largely unknown.
New editor covered facilities management, operations and construction in the US.
Exclusive log cabins on the North Antrim coastline.
Proactive forestry for strategic water management.