About Swift Plinth Foundations

Fast, Simple & Solid Foundations for Garden Buildings Across the UK

Looking for an easier, cleaner and more cost-effective way to lay foundations for your garden
building?

The Swift Plinth System is a UK-designed pre-cast concrete plinth foundation ideal for creating a
stable, level base for log cabins, timber garden rooms, offices, workshops,
outdoor rooms, a garden bar and modular outbuildings.

No Wet-mix concrete. Minimal digging. No delays. Just smart, strong, ready-to-use plinths that make your
outdoor building project quicker and simpler from the ground up.

Why Choose Swift Plinth?

Everything You Need for a Strong, Level Foundation Without the Mess.

Quick & Easy to Install

Minimal digging or mixing required
simply position the plinths on
firm ground or compacted
Type 1 MOT
and you’re ready to build.

Designed for Timber Buildings

Each plinth comes with a bracket shaped to support standard timber joists, SIP’s panels or steel beams, making it ideal for timber framed structures, annexes, studios, log cabins and more’

Reusable & Removable

Unlike permanentconcrete
slabs, Swift Plinths
can be lifted and
reused if you moveor update
your garden building

Reduces Costs & Mess

Save on labour, skip
hire, drying time and weather delays
compared to traditional
poured concrete foundations.

Trusted Across the UK

Designed and manufactured in North Yorkshire, Swift Plinth has been used in hundreds of builds across the UK from annexes, garden offices, studios glamping pods and large-scale timber structures.

How the Swift Plinth System Works

Plan your Layout

Mark the position of each plinth according to your building’s floor plan or supplied layout.

Prepare the Ground

Place each plinth on the Ground Reinforcement Grids filled with gravel or on compacted Type 1 MOT. No need to dig deep footings.

Position the Plinths

Set the Swift Plinths directly on the prepared base. They are designed to hold timber joists securely in place.

Build Your Frame

Insert your timber floor frame joists directly into the plinths and begin building immediately — no curing or setting time.

Plinth spacing and layout will depend on the size, type and weight of your building. Always refer to your supplier’s specifications or seek advice if unsure.