Learn about the ideal concrete base depth for sheds, extensions, and garden buildings in Cambridge. Understand the factors that determine the proper depth to ensure a stable foundation.
When it comes to laying a solid foundation for your shed, garden building, or extension in Cambridge, the concrete base depth plays a crucial role. The right depth ensures long-term durability and structural stability.
Recommended Concrete Base Depths
There’s no one-size-fits-all depth for concrete bases. It depends on the type of structure and ground conditions. However, here are general recommendations:
- Garden Sheds: 75mm – 100mm
- Summer Houses: 100mm – 150mm
- Extensions & Heavier Structures: 150mm – 200mm (with reinforcement)
Why Depth Matters
The depth of a concrete base ensures it can support the load above it without cracking or shifting. A shallow base may seem like a cost-saving option, but it could lead to costly repairs later.
What Influences the Required Depth?
- Soil Type: Soft or unstable soils may require deeper foundations.
- Intended Use: Heavier buildings or machinery need thicker bases.
- Weather Exposure: Outdoor structures benefit from a slightly deeper base for frost resistance.
Do You Need Reinforcement?
If your base is over 100mm, especially for structural builds, it’s often best to include steel mesh or fibre reinforcement for added strength and crack resistance.
Need Help with Your Concrete Base?
At CambsBuild, we specialise in custom concrete base solutions. We assess your ground conditions, recommend the ideal concrete base depth, and ensure a clean, lasting finish.
