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SwiftClamp Post Supports | Bolt-Down & Drive-In Fixings for Timber Posts

Our range of SwiftClamp post supports offers a strong, reliable solution for securing timber posts in fencing, decking, pergolas, and other outdoor timber structures. Designed for quick and easy installation, these heavy-duty supports provide excellent stability while protecting posts from ground moisture and rot.

Bolt-down post supports – ideal for fixing to concrete or solid bases
Drive-in spike supports – quick installation directly into soil or grass
✅ Compatible with standard timber sizes: 75mm, 100mm, and more
✅ Galvanised steel construction for long-term outdoor use
✅ Suitable for fence posts, pergolas, decking legs, and gates

SwiftClamp fixings are a favourite among fencing professionals and DIYers for their ease of use and solid performance. Perfect for garden projects where stability and durability are essential.

✔️ Rust-resistant and long-lasting
✔️ Available in multiple styles and sizes
✔️ UK-wide delivery on all SwiftClamp supports

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Swift Clamp Drive/Post Support 75*75

Alter Supplies
Original price £8.39 - Original price £10.79
Original price
£8.39 - £10.79
£8.39 - £10.79
Current price £8.39
In stock

 The Fencemate drive in post support is suitable for most ground conditions and have a wide range of sizes to fit all common timber posts. Availab...

View full details
Original price £8.39 - Original price £10.79
Original price
£8.39 - £10.79
£8.39 - £10.79
Current price £8.39

Swift Clamp Bolt Down Post Support 75*75

Alter Supplies
Original price £8.39 - Original price £10.79
Original price
£8.39 - £10.79
£8.39 - £10.79
Current price £8.39
In stock

Swift Clamp Bolt Down Post Supports are designed for fixing posts to any hard surface that will accept fixings such as concrete bases, timber decki...

View full details
Original price £8.39 - Original price £10.79
Original price
£8.39 - £10.79
£8.39 - £10.79
Current price £8.39

Swift Clamp Repair Spur 75*75

Alter Supplies
Original price £10.79 - Original price £10.79
Original price
£10.79
£10.79 - £10.79
Current price £10.79
In stock

This support makes light work of replacing a rotten timber post in a sound concrete base. The effective clamp system ensures posts are securely hel...

View full details
Original price £10.79 - Original price £10.79
Original price
£10.79
£10.79 - £10.79
Current price £10.79

Swift Clamp Repair Spur 100*100

Alter Supplies
Original price £14.39 - Original price £14.39
Original price
£14.39
£14.39 - £14.39
Current price £14.39
In stock

This support makes light work of replacing a rotten timber post in a sound concrete base. The effective clamp system ensures posts are securely hel...

View full details
Original price £14.39 - Original price £14.39
Original price
£14.39
£14.39 - £14.39
Current price £14.39

Swift Clamp Drive/Post Support 100*100

Alter Supplies
Original price £15.59 - Original price £17.99
Original price
£15.59 - £17.99
£15.59 - £17.99
Current price £15.59
In stock

The Fencemate drive in post support is suitable for most ground conditions and have a wide range of sizes to fit all common timber posts. Available...

View full details
Original price £15.59 - Original price £17.99
Original price
£15.59 - £17.99
£15.59 - £17.99
Current price £15.59

Swift Clamp Bolt Down Post Support 100*100

Alter Supplies
Original price £10.79 - Original price £14.39
Original price
£10.79 - £14.39
£10.79 - £14.39
Current price £10.79
In stock

Swift Clamp Bolt Down Post Supports are designed for fixing posts to any hard surface that will accept fixings such as concrete bases, timber decki...

View full details
Original price £10.79 - Original price £14.39
Original price
£10.79 - £14.39
£10.79 - £14.39
Current price £10.79