Shire Gorilla Base DIY 4 Ground Screw Foundation Kit - 4 Ground Screws
The Gorilla Base DIY 4 is a complete ground screw foundation kit designed to create a strong, rais...The Gorilla Base DIY 4 is a complete ground screw foundation kit designed to create a strong, raised, and ventilated base for sheds and summer houses without the need for concrete. Installation is quick and mess-free, with no digging and no curing time, allowing customers to 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 kit creates four structural frames, each measuring approximately 1.2m x 1.2m, providing a total coverage of up to 5.76 square metres (Nominal shed size approx. 8ft × 8ft). This makes it ideal for medium-sized garden buildings such as sheds, summer houses, and decked areas. Timber can be trimmed for bespoke sizing. Compared to concrete, Gorilla Base has a much lower environmental impact as 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. Dimensions: 15 x 240 x 240cm.
Shire - Gorilla Base - Ground Screw Foundation Kit - 4 Pack - DIYFree delivery in 1–3 days£783.00Visit shop →
Product Information
Full details
The Shire Gorilla Base DIY 4 is a complete ground screw foundation kit for creating strong, raised, and ventilated bases for garden buildings like sheds and summer houses, without the need for concrete. Its key benefit is a quick, mess-free installation process that allows building assembly on the same day. A potential caveat is that it's designed for medium-sized structures and may require timber trimming for bespoke sizing.
All features
Model Part Number
4
Brand
Shire
Extended Product Information
FAQs
Do I need any special tools for installation?
The kit includes a reusable driving handle. You may also need standard household tools like a spirit level, measuring tape, and potentially a socket wrench or impact driver suitable for driving the ground screws, depending on your ground conditions.
Can I use this for a larger shed (e.g., 10ft x 10ft)?
The DIY 4 kit is designed to cover up to 5.76 sq m, suitable for sheds up to approximately 8ft x 8ft. For larger structures, you would need to consider larger kits or multiple kits, potentially requiring custom planning.
What is the expected lifespan of the ground screws?
The ground screws are typically made from high-quality, galvanised steel designed for ground insertion and longevity. With proper installation and minimal disturbance, they can last for many years.
Is this foundation suitable for uneven or sloping ground?
Yes, ground screws are adaptable to uneven terrain as they can be installed at different depths. The kit's design allows for leveling the base frame, making it suitable for slightly sloping sites.
What happens if I need to move my shed later?
One of the advantages of the ground screw system is that the screws can be uninstalled and reused. This allows you to relocate your shed and its foundation if needed.
How long does delivery take?
Nationwide delivery is available, with dispatch typically within a few working days. The Gorilla team will contact you after purchase to confirm suitability and delivery arrangements.
Can I trim the timber for a custom size?
Yes, the structural timber included in the kit can be trimmed to achieve bespoke sizing for your specific building dimensions.
Troubleshooting
Ground screws are difficult to drive into the ground.
Check for underground obstructions like large rocks or roots. If the ground is very hard, slightly wetting the area might help. Ensure you are using appropriate tools and applying steady, consistent force. For very hard ground, consider professional installation assistance.
The base frame does not sit level.
Adjust the depth of individual ground screws. Screws can be driven deeper or partially unscrewed to achieve a level plane. Refer to the provided instructions for guidance on leveling.
Timber components arrived damaged.
Contact the Gorilla team immediately to report any damage to timber components. Provide details and photographic evidence if possible for a swift resolution.
Missing parts in the kit.
Double-check all packaging. If parts are genuinely missing, contact the Gorilla team with your order details, and they will arrange for the missing items to be sent.
Pros and Cons
Pros
Fast and easy installation, no digging required.
Eliminates the need for concrete, saving time and mess.
Provides a stable, raised, and ventilated foundation.
Environmentally friendly with reusable components.
Suitable for immediate building assembly on the same day.
All necessary parts are included in one kit.
Cons
Primarily designed for medium-sized structures (up to approx. 8ft x 8ft).
Requires sufficient ground space for the four frames.
May require recalibration on uneven terrain.
Timber may need trimming for bespoke designs.
Heavy kit that requires careful handling during delivery and assembly.
Setup, Compatibility & Care
Setup:
Site Preparation: Clear the intended area of debris and mark out the footprint according to the layout guidance provided.
Ground Screw Installation: Use the reusable driving handle and standard household tools (like a socket wrench or impact driver if appropriate) to screw the ground screws into the ground at the marked locations. Ensure they are driven to the correct depth and are level.
Frame Assembly: Construct the four structural timber frames as per the instructions, using the supplied structural fixings.
Base Positioning: Place the assembled frames onto the installed ground screws, ensuring they are securely seated and aligned.
Building Assembly: Proceed with assembling your shed, summer house, or other structure directly onto the newly created foundation.
Compatibility:
Ideal for medium-sized garden buildings such as sheds, summer houses, and small decked areas.
Nominal shed size: Approximately 8ft x 8ft, with a total coverage of up to 5.76 sq m.
Timber can be trimmed for bespoke sizing.
Suitable for most ground types, though extremely rocky or waterlogged soil may present challenges.
Care:
The ground screws are typically made of galvanised steel and require minimal care. Periodically check for any signs of significant corrosion.
Ensure the timber base frame remains clear of debris and vegetation to maintain airflow.
If relocating the structure, the ground screws can be removed and reused.
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