Ultra Decking’s Composite Posts offer a long-lasting, eco-friendly alternative to traditional timber posts. Made from recycled materials, they’re designed to resist moisture, UV damage, and structural decay, making them perfect for supporting composite or wooden joists. They work equally well at ground level or raised, adding strength and extending the life of your subframe.
These solid, 21.6kg posts are built to last without warping, splintering, or rotting. They’re also easy to install, saving time and labour. With ultra low maintenance and a sleek, uniform appearance, they’re a smart investment for any durable decking foundation.
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Long-Lasting Outdoor Performance
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Won’t Rot, Splinter or Warp Over Time
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Low Maintenance Alternative To Timber
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Protects Timber Joists from Ground Moisture
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Length
3000mm
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Width
100mm
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Thickness
100mm
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Installation
Posts (ideally space every 1.5m)
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Colour
Black
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Material
HDPE Plastics
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Weight
21.7kg
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Warranty
25 years
Expert Advice & Guides for Composite Posts
Want to know more? Our in-house expert, Allan, gives his take on our composite posts, and we’ve selected some of our best guides to help you decide if this is the right choice for you.
A Word from Our Expert, Allan:
“When designing our composite posts, we focused on overcoming the main failures of timber. That’s why they have a higher load-bearing capacity and are engineered to resist rot, insects, and splinters.
Their greatest advantage, however, is their incredible resistance to moisture, which is the key to true, long-term durability. The question you should ask isn’t if your subframe will last, but how long you need it to. If you’re building a foundation that you don’t want to worry about for well over a decade, this is the right choice.”
As Seen In
Delivery Information
| Delivery Type | How Long? | Delivery Cost |
|---|---|---|
| Urgent | Estimated 24 Hours | £99.99 |
| Normal | Estimated 3 to 10 working days* | £59.99 |
| Shared | Estimated 10 to 21 working days* | £29.99 |
| Royal Mail Standard (Small Parcels) | 3–5 Working Days | £8.00 |
| Royal Mail Standard (Large Parcels) | 3–5 Working Days | £29.95 |
| Collection | Collection from our warehouse | FREE |
| Sample Packs | 3–5 Working Days | FREE |
