What is the best way to prepare a base for my Log Cabin or Garden Office?
A well prepared, flat, level base is essential to ensure a long lasting and stable installation.
We recommend that you lay a solid concrete base to footprint size plus 100mm all the way round the cabin, for example:
- A Rhine® 4m x 3m would need a base approximately 4200mm wide x 3200mm deep.
- For a Rhine® 4m x 3m plus 1.5m decking the base would need to be approximately 4200mm wide x 4700mm deep.
- For a 9m x 3m Tamar® Grande the base would need to be approximately 9200mm wide x 3200mm deep.
- These sizes are the minimum sized base needed for these particular cabins.
Your base level should lie 20-50mm above ground level.
A solid base can be constructed in a number of ways, using a variety of materials:

- Solid Concrete Base
- Concrete Strip Foundations
- Railway Sleepers
- Paving Slabs on top of Hardcore
- Decking
Strip foundations will allow for better drainage than a solid concrete slab and should be laid running perpendicular to the building's bearers. You will need to use a weed control membrane to prevent any plants that are growing between the concrete strips from coming up through the floor boards.
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