Gorilla Base DIY 1 is a complete ground screw foundation kit designed to create a strong, raised a...Gorilla Base DIY 1 is a complete ground screw foundation kit designed to create a strong, raised and ventilated base for small sheds and garden storage units, without the need for concrete. Installation is quick and mess-free, with no digging and no curing time, so most customers can install the base and assemble their building on the same day. The kit is delivered to your door and can be installed using standard household tools. It includes pre-cut structural timber, ground screws, a reusable driving handle, structural fixings, layout guidance, and clear step-by-step instructions (print and video). The frame measures approximately 1.2m x 1.2m providing a total coverage of of 1.44 meters squared (Nominal shed size approx. 4ft × 4ft — always work from metric dimensions and the shed floor plan as shed sizes if feet vary and often include roof over hang.). Timber can be trimmed for bespoke sizing, and many customers use any extra space for a small decked area or access platform. Compared to concrete, Gorilla Base has a much lower environmental impact. Ground screws require minimal ground disturbance and can be removed and reused if the building is relocated. Nationwide delivery is available, with dispatch typically within a few working days. After purchase, the Gorilla team will contact you to confirm suitability and provide any installation support needed. Say goodbye to messy concrete and digging as Shire Gorilla Base DIY 1 4 x 4ft Heavy Duty Shed Base Kit lets you create a strong raised foundation for your small shed. Pre-cut timber, ground screws and a reusable handle make installation simple, while the ventilated design helps keep your building dry and well supported. Covering 1.44m², the kit is perfect for sheds or bike stores and can even be trimmed for bespoke projects or a handy decked platform. With a lower environmental impact than traditional concrete, the base can be removed and reused if you ever relocate your building, offering flexibility and peace of mind.
Shire Gorilla Base - Ground Screw Foundation Kit - 1.2m x 1.2m - DIYFree delivery in 1–3 days£501.00Visit shop →
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Full details
The Shire Gorilla Base DIY 1 is a complete ground screw foundation kit ideal for DIY enthusiasts looking to create a strong, raised, and ventilated base for small sheds and garden storage units without the mess or hassle of concrete. Its key benefit is quick, mess-free installation with standard tools, allowing building assembly on the same day. A potential caveat is the nominal size, which is best suited for smaller structures around 4ft x 4ft, and careful consideration of shed floor plans is advised. The kit includes pre-cut timber, ground screws, a driving handle, fixings, layout guidance, and instructions.
All features
Model Part Number
Gorilla Base DIY 1
Brand
Shire
Extended Product Information
FAQs
Do I need any special tools to install the Gorilla Base DIY 1?
No, the kit is designed to be installed using standard household tools. A spirit level and a saw for any potential timber trimming might be useful.
What is the maximum size shed this base can support?
The kit provides a nominal 1.2m x 1.2m frame, covering 1.44m², which is ideal for sheds up to approximately 4ft x 4ft. Timber can be trimmed for bespoke sizes, but the ground screw spacing is optimized for this size.
Is this base suitable for uneven ground?
The ground screws can accommodate some unevenness as they are driven in individually. However, significant slopes or very uneven terrain may require professional assessment or additional site preparation.
How long does installation typically take?
Installation time varies depending on ground conditions and user experience, but many customers can install the base and start assembling their shed on the same day.
Can the ground screws be removed and reused?
Yes, the ground screws are designed to be removable and reusable, allowing you to relocate your shed or storage unit if needed.
What is the environmental impact compared to concrete?
The Gorilla Base has a significantly lower environmental impact. It requires minimal ground disturbance, avoids the production and transportation of concrete, and the screws are reusable.
What happens after I order the kit?
After purchase, the Shire team will contact you to confirm suitability for your site and offer any necessary installation support.
Troubleshooting
Ground screws are difficult to drive in.
Ensure the ground is not overly compacted or rocky. Try slightly adjusting the screw's angle or clearing any immediate obstructions. If encountering very hard ground or large stones, professional advice on ground screw suitability for the specific location may be needed.
Base frame feels unstable.
Verify that all ground screws are installed to the correct depth and are level. Ensure all structural fixings connecting the timber to the screws are securely tightened. Double-check the timber frame is square.
Water pooling under the shed.
Confirm that the ground screws are installed at a consistent level, creating a slight slope away from the building if necessary for drainage. Ensure the area around the base is clear and allows for airflow.
Timber components don't fit perfectly.
The timber can be trimmed using standard woodworking tools to achieve a precise fit. Refer to the included layout guidance for assembly.
Pros and Cons
Pros
No digging or concrete required, saving time and effort.
Fast installation, enabling same-day shed assembly.
Ventilated design helps protect stored items from moisture.
Reusable components offer flexibility and sustainability.
Lower environmental impact than concrete bases.
Suitable for DIY installation with common household tools.
Cons
Nominal size is best suited for smaller sheds (approx. 4ft x 4ft).
Requires careful planning for exact shed floor dimensions.
May not be suitable for significantly uneven or rocky terrain without additional preparation.
Ground screw depth needs to be appropriate for soil type.
Some customers may prefer a more permanent, rigid foundation for very large structures.
Setup, Compatibility & Care
Setup:
Site Preparation: Clear the chosen area of debris and level the ground as much as possible. Mark out the desired base dimensions.
Screw Installation: Use the provided reusable driving handle to screw the ground screws into the ground at the marked locations. Ensure they are screwed in to the recommended depth and are level with each other.
Frame Assembly: Attach the pre-cut structural timber components to the ground screws using the provided structural fixings to create the base frame.
Finishing: Trim timber if necessary for bespoke sizing. Ensure all fixings are secure.
Compatibility:
The kit is designed for small sheds, bike stores, and similar garden storage units with a floor plan approximately 1.2m x 1.2m (nominal 4ft x 4ft).
Timber can be trimmed to accommodate slight variations in shed sizes.
Suitable for most soil types, though very soft or waterlogged ground may require professional advice.
Care:
Periodically check the tightness of all fixings.
Keep the area around and under the base clear of debris to maintain ventilation.
The timber components can be treated with wood preservative for longevity.
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