This stepped foundation detail shows how trench-fill foundations can step across a sloping building site. It illustrates the relationship between the concrete foundation, external wall and changing ground levels.
The drawing helps designers communicate foundation changes where a continuous level foundation would be impractical. It also gives builders a clear visual reference for setting out each foundation section.
This detail is suitable for Building Regulations packages, tender documents and residential construction information. For a plain-English introduction to the system, see What Is a Trench-Fill Foundation? Broader structural guidance is available in Approved Document A.
SD-04 – Stepped Foundation Detail
£5.99
A stepped foundation detail for trench-fill construction on sloping ground, showing step geometry, overlaps, masonry continuity and excavation requirements.
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This stepped foundation detail shows how trench-fill foundations can step across a sloping building site. It illustrates the relationship between the concrete foundation, external wall and changing ground levels.
The drawing helps designers communicate foundation changes where a continuous level foundation would be impractical. It also gives builders a clear visual reference for setting out each foundation section.
This detail is suitable for Building Regulations packages, tender documents and residential construction information. For a plain-English introduction to the system, see What Is a Trench-Fill Foundation? Broader structural guidance is available in Approved Document A.
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