Manticore Lumber curved brown recycled plastic bench
Manticore Lumber curved brown recycled plastic bench
Windsor Curved | Chestnut
Windsor Curved | Chestnut
Manticore Lumber curved brown recycled plastic bench
Manticore Lumber curved brown recycled plastic bench
Windsor Curved | Chestnut
Windsor Curved | Chestnut
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Manticore

Windsor Curved | Chestnut

£499.99

inc. VAT

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Free Delivery on orders over £1200

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15 year warranty

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Product Info

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Maintenance free benches and seating with the environmentally friendly Manticore Lumber.

Manticore Lumber is manufactured in the UK using 100% recycled plastics and comes with a 10 year limited warranty for your peace of mind.

  • Assembly required: accessories and instructions included
  • 1800mm length, 450mm height, 435mm width
  • Modular bench system to create contemporary designs
  • Highly durable, all weather proof material
  • Made from 100% recycled plastic and fully recyclable

Recycled plastic lumber is both practical and environmentally friendly, delivering excellent benefits to your project. Our recycled plastic lumber products are exceedingly durable, anti-rot and maintenance-free. 

Plastic lumber, unlike traditional timber, lasts far longer, does not split or splinter and does not require frequent treatment (i.e. sanding, staining and sealing), resulting in considerable lifetime cost savings by reducing maintenance and replacement budgets.

Plastic lumber is also incredibly versatile, being suitable for far more environments than wood. It can even be built directly into the ground due to its waterproof nature. This makes it the ideal material for areas subject to flooding or standing water.

*Lead times may vary, please contact the EnviroBuild sales team on 0208 088 488 or email info@envirobuild.com for accurate delivery timings.

FREE delivery on all orders over £1200 (3-day lead time)* For the most up to date lead times please call us on 020 8088 4888 or email info@envirobuild.com Deliveries are to the property kerbside, requiring a manual offload, a person must be present to sign for receipt. Drivers are not insured to help unload the goods beyond the property kerbside. We recommend that at least two people are present to carry the delivery to the desired location. If there are any access restrictions please make the drivers aware when they contact you. For more, read our full delivery terms. *Stock dependent; Additional charges may apply for Scotland & NI deliveries.
Manticore plastic lumber products will provide years of maintenance-free use with the proper installation. If you are building a subframe take a look at our step-by-step decking subframe installation guide. For resources, technical specifications and downloadable CAD files visit our plastic wood downloads page.

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Composite Decking FAQs

If you don’t find the answer you're looking for, our team of experts is here to help. Give us a call on 020 8088 4888

No, composite decking will not rot, one of its biggest advantages over traditional timber. Composite decking boards are made from a blend of recycled wood fibres and high-performance plastics, creating a dense, moisture-resistant material that resists the fungal growth and decay associated with natural wood.

Unlike timber, which can absorb water and break down over time, eco-friendly outdoor decking made from composite materials is specifically engineered to be low-maintenance and long-lasting—even in wet or humid environments.

  • Moisture resistance: The plastic content repels water, preventing it from seeping into the board.

  • No organic breakdown: With no exposed wood grain, there’s no food source for fungi or mould that cause rot.

  • Capped protection (on some ranges): Premium capped boards have an added polymer shell for even greater protection against moisture, staining, and mildew.

If you're looking for a decking solution that resists the elements and avoids the pitfalls of rotting wood, composite decking boards are a reliable and sustainable choice for both residential and commercial projects.

Composite decking is designed for long-term colour stability, but some initial fading or lightening is normal, especially in uncapped boards. This early change is due to UV exposure and the natural bleeding of tannins from the wood fibres within the board.

  • Tannin leaching: During the first 8 - 10 weeks after installation, especially in wet weather, tannins from the wood content may leach out of uncapped boards. This can temporarily darken or stain the surface but is a normal part of the weathering process and usually washes away naturally.

  • UV exposure: Like any outdoor material, sunlight can cause surface fading. With composite decking, this typically results in a slight lightening that stabilises quickly.

Uncapped composite decking: May show more visible tannin marks and minor colour change initially, but these boards settle into a consistent tone over time.

Capped composite decking: Features a durable polymer shell that resists both UV damage and tannin staining, offering superior fade resistance and longer-lasting colour.

Once early weathering is complete, composite decking boards settle into a consistent tone and require no painting or staining. It’s a simple, low-maintenance way to create a great-looking outdoor space that stays that way.

No, composite decking is designed to offer excellent slip resistance, even in wet conditions. While no outdoor surface can be entirely slip-proof, especially in areas prone to standing water or algae, most composite decking boards outperform traditional timber due to their engineered textures and low-porosity surfaces.

  • Textured surface finishes: Composite boards are manufactured with slip-resistant patterns, such as grooves or embossed woodgrain, that provide reliable grip underfoot.

  • Low water absorption: Unlike timber, composite decking boards do not swell or become slippery as they absorb water. Their material composition resists moisture ingress, reducing long-term hazards.

Correct deck installation is essential. A slight fall or slope allows water runoff, preventing puddling that can lead to slippery areas.

Routine cleaning helps maintain optimal performance. Keeping the surface free from organic debris, algae, and mould is key to long-term slip resistance.

When properly installed and maintained, composite decking provides a safe and reliable solution for outdoor spaces.

Technically, yes, you can paint composite decking, but it’s generally not recommended. Most composite decking boards, particularly capped varieties, are engineered with a protective outer shell that resists moisture, fading, and staining. This makes paint unlikely to adhere properly and can void the manufacturer’s warranty.

  • Low-Maintenance by design: One of the key benefits of composite decking is that it never needs sanding, sealing, or painting, making it a true low-maintenance decking solution.

  • Warranty risks: Altering the board’s surface may compromise product guarantees, especially for UV and stain resistance.

For older, uncapped composite boards that have faded significantly or suffered surface damage, painting may be a last-resort option.

Ultimately, for a long-lasting and eco-friendly outdoor decking solution, it’s best to choose a composite board in a colour you’re happy with long-term, avoiding the need to paint altogether. Proper deck installation and minimal upkeep will ensure a consistent, durable finish for years to come.

Maintaining composite decking is straightforward and significantly easier than with traditional timber. Designed as a low-maintenance decking solution, composite boards require only occasional cleaning to keep them looking their best and performing well year-round.

  • Regular cleaning: Sweep the deck regularly to remove leaves, dirt, and debris. This prevents staining and helps avoid mould or algae build-up.

  • Washing: Clean the surface with warm soapy water and a soft-bristle brush, or use a pressure washer on a low setting (typically under 1500 psi). Always follow the grain of the board to avoid damage.

  • Tannin & water marks: Some early weathering, such as tannin leaching or water spots, is normal and will fade over time. Light rinsing or gentle scrubbing can help.

  • Avoid harsh chemicals: Do not use bleach, strong solvents, or oil-based cleaners, as they may damage the surface or compromise colour stability.

Ensure proper drainage during deck installation to reduce standing water and prevent slipping or staining.

Inspect fixings and joists annually to ensure the substructure remains secure, particularly on commercial or high-traffic installations.

Thanks to its durability and weather resistance, eco-friendly outdoor decking made from composite materials delivers long-lasting performance with minimal effort, making it ideal for both residential gardens and large-scale landscaping projects.

Composite decking is a man-made building product manufactured with a blend of wood fibres, plastic polymers and a small amount of bonding agents. This mix is heated, formed into board shaped lengths and then cooled.

  • Recycled wood fibres: Typically sourced from sawdust or reclaimed wood, these fibres provide the deck board with strength and a natural grain-like texture.

  • Recycled plastics: High-density polyethylene (HDPE) or polypropylene is used to bind the board together and add moisture resistance. These plastics are often sourced from post-consumer waste such as packaging or plastic bottles.

  • Additives and binders: Colour pigments, UV inhibitors, and bonding agents are added to improve fade resistance, colour consistency, and structural stability.

Capped composite decking includes a protective polymer shell that surrounds the core, providing enhanced resistance to staining, fading, and moisture.

Uncapped composite decking boards are more affordable but may be more susceptible to early weathering or surface marking.

This eco-friendly outdoor decking solution not only diverts waste from landfill but also offers excellent durability and aesthetics with minimal upkeep.

In many ways, composite decking is a better long-term choice than traditional wood decking, especially when it comes to durability, maintenance, and environmental impact. While timber remains popular for its natural aesthetic and lower upfront cost, composite decking boards offer several key advantages that make them a smarter investment for modern outdoor spaces.

  • Low maintenance: Composite decking doesn’t require sanding, staining, or sealing. Occasional cleaning is all that’s needed, making it a truly low-maintenance decking solution.

  • Longer lifespan: Unlike timber, composite boards won’t rot, splinter, warp, or suffer from insect damage.

  • Slip and fade resistance: Capped composite boards are designed to resist UV fading, stains, and moisture, maintaining their appearance.

  • Eco-friendly materials: Most eco-friendly outdoor decking options use recycled wood and plastics, reducing landfill waste and deforestation.

For some projects, such as heritage restorations or where a weathered natural finish is specifically desired, wood may be appropriate. However, for the vast majority of deck installation projects, especially where longevity, performance, and sustainability are priorities, composite decking is the superior choice.

The best composite decking depends on your specific style and needs: budget, location, intended use, and aesthetic. However, in general, capped composite decking boards are considered the highest-performing option on the market today due to their enhanced durability, stain resistance, and long-term colour retention.

  • Capped boards: These include a protective polymer shell that surrounds the core, offering superior resistance to fading, moisture, mould, and staining. Ideal for high-traffic areas or exposed outdoor spaces.

  • High slip resistance: Look for boards with textured surfaces or anti-slip certifications, particularly important for commercial spaces or wet climates.

  • Warranty coverage: Leading manufacturers offer warranties of 15–25 years or more, covering structural performance and colour stability.

  • Sustainable manufacturing: The best eco-friendly outdoor decking options are made from up to 90% recycled materials and manufactured using renewable energy.

The best composite decking balances performance, aesthetics, and sustainability. Whether you’re building a family-friendly outdoor retreat or specifying materials for a commercial project, investing in a high-quality, low-maintenance decking system ensures lasting value and professional-grade results.

Composite decking typically lasts 25 to 30 years or more, depending on the quality of the board, exposure to the elements, and how well it’s maintained. This far exceeds the lifespan of traditional timber decking, which often requires replacement after 10–15 years due to rot, warping, or insect damage.

  • Durable materials: Made from a blend of recycled wood fibres and plastic, composite decking boards resist moisture, mould, and decay.

  • Capped protection: Premium boards feature a protective shell that shields against fading, stains, and surface wear, significantly extending the deck’s usable life.

  • Low-maintenance performance: With no need for sanding, staining, or sealing, composite decking maintains its integrity with minimal upkeep, ideal for both homeowners and landscapers seeking reliable, long-term results.

With residential warranties ranging from 15 to 25 years (depending on product range), we have confidence in the long-term performance of our products.

Eco-friendly outdoor decking made from composite materials offers a low-maintenance decking solution that stands the test of time. While proper deck installation and basic care will ensure it continues to perform for decades.