

4m Signature Solid Composite Decking Board
Built for strength where it matters most, this 4m Signature solid composite decking board offers homeowners, DIY installers and home renovators a sturdy, low‑maintenance solution for busy outdoor spaces, including large garden upgrades and renovation projects. Ideal for high‑footfall garden areas, rental properties and decking steps, as well as commercial environments such as cafés, bars and beer gardens, the solid construction also improves sound absorption underfoot. Each reversible board features a realistic woodgrain effect or low‑slip narrow grooves, available in a range of stylish colours, offering a practical, solid composite decking option without the upkeep of timber.
About Our 4m Signature Solid Composite Decking Board
Whether you’re a landlord looking to breathe new life into a rental property, a DIY installer planning a home renovation, or a homeowner or trade professional seeking a modern alternative to timber, some outdoor projects demand a more substantial decking solution. Our 4m Signature solid composite decking board is designed for areas where added strength, stability and durability are essential, making it a reliable choice for high‑traffic environments and structural applications such as decking steps.
Featuring a solid‑core construction, these composite boards offer greater rigidity and load‑bearing performance than hollow alternatives. This makes solid Signature decking particularly well suited to homeowners upgrading busy garden spaces, rental property owners and landlords seeking a durable, low‑maintenance solution, as well as trade professionals working on high‑traffic domestic or commercial projects, including outdoor seating areas for cafés, bars, restaurants and beer gardens. The solid profile also improves sound absorption, helping to reduce noise underfoot in areas with frequent foot traffic.
To qualify for the 10‑year warranty, boards must be installed onto a Cladco recycled plastic decking subframe and fitted in line with the installation guide.
Benefits of 4m Signature Solid Wood‑Effect Composite Decking Board
- Solid‑core construction for increased strength and load‑bearing performance
- Suitable for decking steps, balustrades and high‑traffic areas
- Improved sound absorption compared to hollow‑core decking
- Ideal for domestic and commercial environments, including cafés and bars
- Low‑maintenance alternative to timber with no painting or staining required
Product Suitability
| Suitable For | |
|---|---|
| Garden decking - light use | ✔ Yes |
| Garden decking - heavy use | ✔ Yes |
| Commercial decking | ✔ Yes |
| Balcony / roof terrace decking | ✔ Yes *no fire rating |
| Hot tub / spa decking surround (domestic) | ✔ Yes *avoid chemical spills |
| Pool decking (domestic) | ✔ Yes *avoid chemical spills |
| Shaded / damp / algae-prone sites | ✗ No |
| South-facing / full sun sites | ✔ Yes *will fade more quickly |
| Coastal sites | ✔ Yes *reduced warranty |
| Waterside - piers, pontoons, jetties, walkways | ✔ Yes |
| Luxury / real timber aesthetic | ✗ No |
Sharing the same visual appeal as the rest of our Signature range, each board features a dual‑sided, reversible profile. Choose between a detailed woodgrain‑effect finish for a traditional timber‑style appearance or narrow grooves for improved grip underfoot and a more contemporary look. Available in a selection of stylish colours, including stone grey and teak, these boards deliver a consistent finish without the need for painting, staining or treating.
Comprising a blend of recycled hardwood fibres and recycled plastic, Signature solid composite decking offers good resistance to rot, splintering, warping and insect infestation. The solid construction also makes these boards compatible with our aluminium balustrade system, providing a strong, secure foundation for integrated balustrade installations.
As with all composite decking that contains natural fibres, some colour variation and weathering should be expected. An initial colour stabilisation period will take place within the first few months after installation, influenced by sunlight (UV) exposure and weather conditions. Ongoing maintenance is minimal and does not require painting or staining. To help maintain the appearance of your boards over time, we recommend regular use of a composite decking cleaner to remove surface dirt, along with composite decking reviver, where required, to refresh the finish and restore colour.
Specifications
- Length: 4m
- Width: 150mm
- Thickness: 25mm
- Weight (approx.): 20.92kg
- Profile: Solid‑core, reversible
- Finish: Woodgrain effect and narrow grooves
- Material: Recycled hardwood fibres and recycled plastic
- Colours: Coffee, charcoal, redwood, stone grey, teak
Fixing Guidance
For a stable and secure installation, Signature solid composite decking boards should be fitted using composite decking locking clips to help minimise board movement caused by expansion and contraction. Easy to install, whether you’re a home renovator, DIY installer or trade professional, T‑clips are recommended alongside locking clips, particularly at butt joints, to ensure consistent spacing, encourage effective drainage and reduce the risk of standing water.
As part of the Signature range, a full selection of matching trims and fixings is available, including skirting trims, corner trims, fascia boards and bullnose boards, helping you achieve a professional, cohesive finish.
Looking for an alternative?
For lighter boards suited to domestic garden projects, see our Signature 4m composite decking and Signature 2.4m composite decking boards.
For a solid‑core alternative with greater protection and a more premium 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
Order A Sample Pack!

Download our printable installation guide (1).
Click here to view the online installation guide (1).
Download the datasheet for 4m Signature Solid Composite Decking Board


| 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 £1,200 (inc. VAT) | Est. 5 working days* Roofing items 7-10 working days* |
£96.00 | ||
| Orders over £1,800 (inc. VAT) | 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 | |
|
|
||||
| Millboard Delivery | Orders under £2,000 | Est. 5 working days* | £192.00 | |
| Orders over £2,000 | Est. 5 working days* | FREE | ||
|
|
||||
| Parcelforce Standard | (Small Parcels) | 2 working days* | £10.30 | |
| (Large Parcels) | 2 working days* | £31.80 | ||
|
|
||||
| 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.













