Adjustable Metal Shed Base Kit
Swift Leveller is a UK-based specialist in adjustable foundation systems designed to simplify the installation of garden buildings. With years of industry experience and a focus on quality engineering, we offer durable, weather-resistant metal shed foundation kits that provide strong, level support without the need for a concrete base or digging. Our products are ideal for a wide range of outdoor structures, including timber sheds, summerhouses and greenhouses but we also provide tailored metal shed base kits, giving you a stable, rust-free platform on all types of ground. If you’re planning a new install, this helpful guide to installing a metal shed covers everything from base preparation to final assembly. Each kit is easy to install, fully adjustable and built to perform in real garden conditions, making them a smart, maintenance-free, long-lasting alternative to traditional base methods.
Screw the head u channel of the Swift levelling device to the frame at equal intervals. Complete this for the whole frame.
Flip the timber frame over so that the bases point to the floor. Slide the templates to the ground and pin them in position.
Move the frame leaving the templates in place, and drill the large centre holes in the ground.
Insert the base plates into the ground. Position the heads and frame over the large centre holes and drop into place.
Adjust each head to the required height and tighten each nut to secure the frame. Use a spirit level to check, and adjust if necessary.
Metal Shed Foundation Kit
Our adjustable metal shed base kit is designed to provide a secure, solid base that’s perfectly suited to the unique demands of metal garden buildings. Built from galvanised steel and weather-resistant materials and engineered for strength, each leveller in the kit allows for precise height adjustment, helping you create a stable base on sloped or uneven ground without the need for a concrete base or groundwork. Whether you’re installing a compact tool shed or a large metal shed, we offer four tailored options to suit your needs: the Mini for smaller structures, the Flexi for everyday metal sheds, the Max for heavier loads and the XL for larger, industrial-style buildings. Easy to install and built to last, our kits give you complete peace of mind from the ground up. We also offer free delivery on all kits, typically within 3–5 working days.
Each pack is carefully assembled to give you everything needed for a strong, stable and straightforward shed base installation. Designed with ease and reliability in mind, every kit includes:
• Fully adjustable levellers to create a level base on uneven or sloped ground
• Heavy-duty fixings to ensure secure and lasting support
• Clear, easy-to-follow assembly instructions to guide you through setup step-by-step
• Pack size options of 4, 6, 8, 10 or 12 to suit various shed dimensions
• Optional add-ons available for extra stability or bespoke configurations
With all components made to perform in real garden conditions, our kits are built to simplify your project from start to finish.
Our adjustable metal shed base kit offers a smarter, more flexible alternative to traditional foundations like concrete slabs or paving. Designed for ease of use and long-term performance, it eliminates the need for digging, drying time or permanent groundwork—saving you time, mess and labour. The fully adjustable levellers allow you to easily create a level base on uneven or sloped ground, giving your shed the support it needs from the ground up. Unlike rigid bases, our system is reusable and can be adapted or relocated if your needs change. It’s a clean, fast and reliable solution that delivers lasting strength without the hassle.
Foundation Kit for Metal Shed
When you choose Swift Leveller, you’re investing in trusted expertise and carefully engineered quality. With years of experience in outdoor structure foundations, we’ve developed a range of products that combine strength, adjustability and long-term reliability—all made to perform in real garden conditions. Every metal shed foundation kit is built using durable, galvanised steel and weather-resistant materials and designed to simplify installation without compromising on stability. As a sister company of Isaac Granger’s, we bring a heritage of precision and performance into every product we deliver. Whether you’re a seasoned tradesperson or tackling a DIY project, our commitment to quality means you can build with complete confidence.
Have questions about choosing the right metal shed base kit or whether you require planning permission for your project? Our team is here to help you find the perfect fit for your structure and ground type. If you’re unsure, please contact us and we’ll guide you through everything you need to get started with confidence.