The Swift Leveller Flexi is built for one purpose, making it straightforward and effortless to level your outdoor structure, whether that’s a storage shed, home office, or garden room. Its clever design means anyone can get the job done without needing specialist tools or experience.
Made in Britain, the Swift Leveller Flexi is built to a high standard you can rely on. It has been tested and certified for safety, and finished with an environmentally responsible coating. It removes the need for expensive and disruptive ground preparation while providing a firm, stable base for your structure to sit on.
- Designed to make shed and garden building levelling straightforward and effortless
- Suitable for soft surfaces like gravel and grass
- Can be concreted or inserted into the ground, with concreting recommended
- Suitable for small sheds, lightweight greenhouses and similar outdoor buildings
- Works across grass, soil, hardcore, or a combination of ground types
- Adjustable design helps accommodate uneven ground levels
- No specialist tools or costly equipment required
- Made in Britain and tested for safety
- Finished with an environmentally responsible coating
- Storage sheds
- Home offices
- Garden rooms
- Small sheds and lightweight greenhouses
- Outdoor buildings installed across mixed ground surfaces
- Built to a high standard for dependable outdoor use
- Designed to provide a firm, stable base without disruptive ground preparation
- Compatible with mixed-surface installations using different Swift Levellers together
- Certified for safety and designed for confident DIY installation
- Supports straightforward installation for competent DIY users
The Swift Leveller Flexi is designed to simplify the installation of sheds and garden buildings by providing a stable, adjustable base across a variety of soft and mixed ground conditions.
The Swift Leveller Flexi is designed for soft surfaces such as gravel and grass, and can be concreted or inserted into the ground where required. Follow the sequence below for a clear, practical overview of the installation process.
Screw the head U-channel of the Swift levelling device to the frame at equal intervals, then repeat this around the whole frame.
Flip the timber frame over so the bases point to the ground, then slide the templates down to the floor and pin them in position.
Move the frame away while leaving the templates in place, then 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 everything into place.
Adjust each head to the required height and tighten each nut to secure the frame. Check with a spirit level and fine-tune as needed.
Buy the Swift Leveller Flexi from our trusted stockists across the UK.

Fast, simple levelling for sheds, cabins, and garden buildings.
Speak with our team about your specification, project programme, and bespoke requirements.