

4m ProDeck Composite Decking Board
4m ProDeck composite decking boards are a premium composite decking solution and provide high stain and fade resistance. ProDeck boards are available in seven multi-tonal colours to bring both durability and style to your outside space. With a detailed woodgrain effect on one side and narrow grooves on the reverse for enhanced slip resistance, ProDeck boards offer versatility and safety underfoot.
About Our 4m ProDeck Composite Decking Board
If you’re a home renovator planning an upcoming decking installation, it’s important to remember that larger decking areas benefit from boards that deliver visual impact with fewer interruptions across the surface. For this reason, our 4m ProDeck polymer‑capped composite decking board is a great option for projects where a more seamless, high‑end finish is key, helping to reduce the number of butt joints across wider spaces and create a cleaner, more continuous look.
ProDeck is designed for customers seeking a distinctive, high‑quality finish. The longer 4m length makes this board particularly attractive to homeowners and home renovators working on expansive garden projects, as well as landlords and trade professionals delivering high‑quality outdoor spaces where continuity of finish is important. It’s also a popular choice for commercial outdoor areas in the hospitality and leisure industries, which need to balance great looks with durability and a long‑lasting finish.
Each ProDeck board features a reversible design, allowing you to choose between a charming natural surface that closely reflects real timber grain or narrow grooves for improved grip and a sleek, contemporary look. The enhanced surface detailing and subtle colour variations give ProDeck a refined, timber‑led appearance, making it a go‑to choice for residential spaces and commercial environments where presenting a high‑quality finish is a priority.
ProDeck boards come with an extended 15‑year warranty when installed onto Cladco recycled plastic joists and fitted in line with the installation guide.
Benefits of 4m ProDeck Composite Decking Board
- Longer 4m length helps reduce butt joints for a cleaner, more seamless finish
- Polymer‑capped surface for improved resistance to wear, fading and weathering
- Low‑maintenance alternative to timber with no painting or staining required
- More authentic woodgrain finish for a refined, premium appearance
- Reversible boards with a choice of woodgrain or low‑slip grooved profile
Product Suitability
| Suitable For | |
|---|---|
| Garden decking - light use | ✔ Yes |
| Garden decking - heavy use | ✔ Yes |
| Commercial decking | ✔ Yes |
| Balcony / roof terrace decking | ✔ Yes *Class B fire rating |
| Hot tub / spa decking surround (domestic) | ✔ Yes *avoid chemical spills |
| Pool decking (domestic) | ✔ Yes *avoid chemical spills |
| South-facing / full sun sites | ✔ Yes |
| Coastal sites | ✔ Yes *reduced warranty |
| Waterside - piers, pontoons, jetties, walkways | ✔ Yes |
| Luxury / real timber aesthetic | ✔ Yes *woodgrain side |
Providing additional protection against moisture, staining, UV exposure and general surface wear, the polymer‑capped surface makes ProDeck a practical option for rental properties and landlords who need a durable decking solution that maintains its appearance over time. From domestic garden renovations, pool and hot tub surrounds, balconies, and coastal locations, ProDeck boards retain their colour and finish for longer than standard composite boards, even in more demanding conditions.
Engineered with a strong composite core made from recycled hardwood fibres and recycled plastic, and protected by a polymer‑capped surface, the six‑hole honeycomb construction keeps the boards lightweight yet strong. This board design supports easier handling during installation, even at longer lengths, while still delivering reliable long‑term performance for both domestic and commercial applications.
ProDeck composite decking requires minimal upkeep and does not need sanding, painting, staining or sealing, as required with timber alternatives. To help preserve the appearance of your decking, we recommend regular use of a composite decking cleaner to remove surface dirt and grime. The capped outer layer also limits moisture absorption, helping reduce surface marking and keep maintenance to a minimum over the lifetime of your deck.
Specifications
- Length: 4m
- Width: 143mm
- Thickness: 23mm
- Weight (approx.): 12.28kg
- Profile: Hollow‑core, polymer‑capped, reversible
- Finish: Woodgrain effect and narrow grooves
- Material: Polymer‑capped composite with recycled hardwood fibres and recycled plastic
- Colours: Sandstone, pewter, platinum, onyx, quartz, rosewood, burnt oak
Fixing Guidance
To achieve a clean, well‑aligned finish on larger decking areas, whether you’re a confident DIY installer or a professional tradesperson, ProDeck boards should be installed using our T‑clip fixings and starter clips. Incorporating composite decking locking clips helps control board movement and maintain consistent spacing, particularly across wider spans.
A full range of matching corner trims, fascia boards and bullnose boards is available to complete your installation. For further guidance, see our Help & Advice page.
Looking for an alternative?
For shorter lengths, see our 2.4m ProDeck composite decking board.
For improved fire performance and a premium‑grade finish, see our Nordeck® decking range.
Or browse our decking department for composite decking and more.
For large orders or specialist support, call 01837 659901 to speak with our friendly team.
For the most consistent results, we recommend ordering all your composite decking boards in a single purchase, as colours may vary between production batches. Even within the same batch, slight shade differences can occur. To help achieve a more blended appearance, lay out all boards prior to installation, identify any tonal variations, and mix them accordingly. Please also note that boards may appear different in wet and dry conditions.
*Cladco composite products are available as FSC® certified at no additional cost. If you require FSC® certified products, please request this when placing your order.
*Images are for illustration purposes only. Actual products may vary slightly from those shown.
*All composite boards are manufactured with a tolerance of up to ±5mm in length and width due to the natural materials used and the manufacturing process. This is a standard industry allowance and does not affect performance once installed.
Inspiration
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Download our printable installation guide (1).
Click here to view the online installation guide (1).
| Type | When? | Cost? | ||
|---|---|---|---|---|
| National Delivery | Orders under £1,200 (inc. VAT) | Est. 5 working days* Roofing items 7-10 working days* |
£192.00 | |
| Orders over £1,800 £1,200 (inc. VAT)
AUGUST FREE DELIVERY OFFER
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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 £1,200 (inc. VAT) | Est. 5 working days* | £192.00 | |
| Orders over £2,000 £1,200 (inc. VAT)
AUGUST FREE DELIVERY OFFER
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Est. 5 working days* | FREE | ||
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| Parcelforce Standard | (Small Parcels) | 2 working days* | £10.30 | |
| (Large Parcels) | 2 working days* | £31.80 | ||
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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.
Some reviews shown may be from customers who purchased similar or related products.
Great colour. Great quality. Good information on the website. Calculator is clever but double check its workings.
Nothing other than a high shipping cost if you need to reorder just one plank!













