The Problem

Many customers already have a patio or concrete base in place and assume it’s ready for a garden building. On the surface, it makes sense — it’s solid, it’s already installed, and it avoids the need for additional groundwork.

However, the reality is that most patios and concrete bases are not perfectly level. Over time, slabs can settle, shift, or may not have been laid accurately in the first place. Even slight imperfections — often invisible to the eye — can cause significant issues when installing a building.

Garden buildings need a level foundation. Without it, the structure is forced to sit under uneven pressure, which can immediately affect how it fits together and performs.

The Outcome

Installing a building onto an uneven patio or concrete base almost always leads to problems — both straight away and over time.
You may experience:

• Doors that won’t close properly
• Windows sticking or misaligning
• Panels twisting or warping
• Uneven weight distribution across the structure
• Gaps forming, allowing water ingress

These issues don’t just affect usability — they can significantly reduce the lifespan of your building.
In many cases, customers end up needing to rework or replace the base after installation, turning what seemed like a simple solution into a costly and frustrating experience.

The Solution

Our Gorilla Feet Base system is specifically designed to solve this problem.
Instead of relying on your patio or concrete base being perfectly level, Gorilla Feet allow us to create a fully level, raised foundation on top of your existing surface.
Each foot is adjustable, enabling precise levelling across the entire base. This ensures your building sits perfectly square, eliminating stress on the structure and allowing everything to function exactly as it should.

The result is:

• Smooth, correctly aligned doors and windows
• Even weight distribution across the frame
• Improved airflow beneath the building to reduce damp
• A longer-lasting, more reliable installation