Quality decking pedestals and heavy duty supports
Browse durable composite decking posts and adjustable decking pedestals for custom height, speedy installation, and long-lasting performance.
Subframe strength and support
A composite deck is only as safe and strong as the supporting substructure beneath it. The more protected the subframe is from the elements, the better your deck will look from above.
When choosing decking pedestals and posts for the substructure, investing in quality is a must.
Our quality decking pedestals and heavy duty composite posts are designed for longevity. Combine with the right support joists or beams from our collection, and you’ve got a decked area that’s built to last.
Composite decking posts and pedestals
Take a look at our deck pedestals and composite posts, designed to give your subframe the support it needs for quality performance.
Heavy duty support posts
Our posts for decking are made from a blend of composite wood materials, making them a superior alternative to timber.
Overview:
- Low-maintenance, with no treatment requirements.
- Fast to install.
- Suitable for a range of surfaces, particularly soil and gravel.
- Rot, splinter, and warp resistant.
- Extremely durable and long-lasting.
- Available in standard and bespoke lengths. As standard, they measure 1.83m or 2.44m. In some cases, we can cut them to custom lengths for your required height.
Adjustable decking pedestals
With variable and adjustable height options, our deck pedestals (also known as ‘risers’) allow speedy and accurate installation.
Decking pedestal sizes
- 35-50mm
- 50-70mm
- 65-100mm
- 85-135mm
- 95-130mm
- 125-215mm
- 210-380mm
Overview:
- Manufactured from high quality polypropylene.
- Adjustable and flexible to meet different heights up to 1,000mm.
- Suitable for a variety of floor surfaces, including concrete, balconies, podiums and roof decks. They allow for inspection under tiles, slabs, and decking, without demolition.
- Ideal for slopes and rises. The addition of slope correctors offers precision and stability for your decking.
- Quick to install.
- Great at preventing water pooling on the deck.
Talk through your needs…
So, are you better off with pedestals or posts? We’ll help you find the right solution for your deck substructure. Our team is happy to answer your questions and talk through your options.
In the meantime, our guide has everything you need to know about decking subframes to help you get started: Your guide to composite decking frames.
Making outdoors, yours
Installation support
All the information and support you need to install your composite decking is here on our website.
Ecodek insights
Check out our recent articles
Find out everything you need to know about composite decking, subframes, and accessories in our blog.
Decking pedestals and posts FAQs
How do composite decking posts work?
Composite deck posts form part of the decking subframe. The posts connect the joists (that make up the outer frame), bearers, and noggings.
It’s important the spacing between the deck posts is correct to give the subframe maximum stability – you can find this in the manufacturer’s installation instructions.
For an overview of what building a strong and sturdy subframe involves, please read our guide: Things to consider when building a base for composite decking.
How high do composite deck posts need to be for ventilation?
The ideal height for composite decking to promote airflow and drainage varies from manufacturer to manufacturer. The minimum height of composite decking supplied by Ecodek is 100mm.
You should never place a subframe directly onto a soil or concrete surface, as ventilation will be impossible. Deck posts or pedestals can be used to raise the deck off the surface and provide air gaps and drainage for long-lasting decking.
The manufacturer’s installation instructions will include instructions to make sure your decking is raised off the ground to the appropriate height.
What’s the difference between deck pedestals and posts?
Decking pedestals are an adjustable support used to level raised decks. They sit under deck joists to lift the decking off the ground. If you’re installing decking on an uneven surface, pedestals are the ideal way of making a strong, stable, and level foundation.
Composite decking posts are a fixed-height support. They’re suitable for different surfaces – in particular, gravel and soil. Posts can be cut to custom lengths so you can achieve the right deck height for your project.
Contact us to understand which support is best for your application.
What ground surfaces do composite deck posts work on?
Composite deck posts work on different ground surfaces, including soil and gravel. You can either concrete them directly into the ground or onto a concrete pad. The rest of the decking framework is then bolted onto the posts.
Concrete pads provide a more stable base – the pad lies on the ground, with a deck pedestal system on top. The deck framework is then added on top of the pedestal network. If you’re considering using a concrete pad, please get professional advice.
For more information, take a look at: How to prepare your ground for decking.
What’s the difference between timber and composite deck posts?
Like composite deck boards, composite posts don’t have any treatment or paint requirements. With resistance to rotting, splintering, and splitting, composite posts for decking are extremely durable. For a subframe that lasts, they’re the perfect choice.
Read more: Composite decking frame guide.
Visit our Help & advice pages for more technical product information and support.