
100mm x 100mm Concrete Decking Post
This concrete decking post is an alternative to timber or composite options, offering a more resilient post for decking subframes.Each post includes an internal reinforced bar for added stability and long-term strength. Available in two sizes, these posts can be installed directly into the ground or used with Cladco concrete decking blocks.
More About Cladco Concrete Posts
Specified for creating sturdy and resistant decking frameworks, our concrete decking posts are a low-cost way of securing decking projects with concrete. This method removes the need for pouring concrete to secure posts, making installation more convenient and easier.
As well as the added resistance of the concrete materials, these posts have an internal reinforced bar for increased structural stability and overall longevity.
With the versatility of being installed directly into the ground or within a concrete decking block, depending on the project, the posts are designed to ease the decking building process. The concrete material provides resistance to water damage and decay, creating a reliable and rot-free alternative to timber support posts.
Post specifications
- Length: 600mm, 1200mm
- Width: 100mm
- Depth: 100mm
- Weight (Approx.): 21kg, 26kg
- Colour: Light grey
- Posts needed: 1 post per m²
These concrete posts include two pre-formed holes at the top to help ease the installation process. Compatible with both timber and recycled plastic joists, the posts are easily adapted to project and material requirements. They are also available in two lengths to help meet the specifics of each project.
When fitting the posts, it is recommended that installation is done during dry weather conditions to ensure an exact fit. If the fit of the posts is slightly off or angles need to be adjusted, use our concrete decking block shims to create a snug finish. Posts can remain exposed if needed due to their resistance.
Safety notice
Due to the weight of the product, posts should be handled carefully using correct manual handling techniques. Gloves, steel-toe footwear and lifting aids are recommended where suitable.
If you are looking for alternatives, we also offer recycled plastic decking posts and treated timber posts within our decking framework range.
Looking for an alternative post?
See our recycled plastic decking post 100mm x 100mm x 3m length
Looking for a timber post?
See our sawn green treated timber post 100mm x 100mm x 3000mm
Or browse our decking framework for more…
Order A Sample Pack!

Download the datasheet for 100mm x 100mm Concrete Decking Post


| Type | When? | Cost? | ||
|---|---|---|---|---|
| National Delivery | Orders under £1,000 | Est. 5 working days* Roofing items 7-10 working days* |
£192.00 | |
| Orders over £1,000 | Est. 5 working days* Roofing items 7-10 working days* |
£96.00 | ||
| Orders over £1,500 | Est. 5 working days* Roofing items 7-10 working days* |
FREE | ||
| Scotland Delivery | Postcodes: PA, PH, DD, AB, IV, & KW | Est. 15 working days* Roofing items 7-10 working days* |
£360.00 | |
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| Millboard Delivery | Orders under £2,000 | Est. 5 working days* | £192.00 | |
| Orders over £2,000 | Est. 5 working days* | FREE | ||
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| Parcelforce Standard | (Small Parcels) | 3-5 working days* | £8.50 | |
| Parcelforce Standard | (Large Parcels) | 3-5 working days* | £30.00 | |
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| Sample Packs via Courier | 5 working days* | FREE | ||
*Please allow for public holidays and weekends (non-delivery days)
Some of our products are available for collection from our warehouses in Okehampton (Devon) and Andover (Hampshire) - This option will show at checkout, when available.
Standard collection lead time is 3-5 working days, this may vary depending on the product. If you would like to collect your order after 2 hours, please choose this option at checkout.
Please note that collections are only available from Monday-Friday, 08:00 - 17:00 & Saturday, 08:00 - 12:30 (Note: this IS the cut off time for collections, despite our closing time of 13:00)
Please Note The Following Prior To Collection:



Vehicles we can and cannot load
Cladco Profiles will only load flatbed lorries and flatbed trailers for insurance purposes. If the appropriate vehicle is not available, two people would be required for a collection.
Cladco Profiles will NOT load any vehicles with roof racks, horse boxes, cattle lorries or fixed-sided trailers. Cladco Profiles has the right to refuse loading a vehicle for any reason.
Before arranging a collection, please read our Customer Collection Notice below.

Our Okehampton HQ and Warehouses (Devon)

Our Andover Warehouses (Hampshire)








Customer Collection Notice
Please ensure you have pre-booked your collection slot before travelling to site.
When arriving to collect your order, please report to a member of our Warehouse Team who will register your arrival and locate your goods. Once ready, your items will be picked and brought to your vehicle loading area.
During busy periods, there may be a short wait while our yard team assist other customers or complete other loading tasks. We always do our best to work within your booked collection time.
We respectfully draw your attention to the following important points:
- Loading is ultimately the customer’s responsibility. While our team can assist with mechanical loading using forklifts, we cannot handball items into enclosed vehicles. Customers must ensure their vehicle is suitable and that goods are safely loaded and adequately secured before leaving the premises.
- Sharp sheeting, metal goods, and long/heavy items may pose additional handling risks. Please come prepared with high-quality protective gloves, and any appropriate protection materials to avoid damage to your vehicle or restraints (e.g. ropes or straps). The edges of roofing sheets and metal products can be extremely sharp, and care should be taken when handling.
- We strongly recommend that customers bring their own straps, ropes, or other securing materials, as we are unable to provide these at the point of collection.
- If you are unsure of your vehicle’s load capacity, we can advise the approximate weight of your order in advance. It is your responsibility to ensure your vehicle is suitable for transporting the goods safely and legally.
- Cladco will not be held liable for any damage to your vehicle or goods once they have been loaded and leave our premises. Loading assistance is provided entirely at the customer’s own risk.
Click & Collect – Pre-Booking Required
You are welcome to collect your order from either our Okehampton (Devon) or Andover (Hampshire) site. All collections must be pre-booked in advance so your items can be picked, packed and ready for you.
Please do not travel to site without a confirmed collection time, as we cannot guarantee your order will be available.
Once your items are ready, you will receive an email with a link to book your collection slot. Please note, same-day collections are not available and bookings must be made at least two hours in advance.
When you arrive, please bring your order confirmation and follow the signage to the collection area where a member of our team will assist you.













