Bring your vision to life
Discover our hand-crafted, UK-made composite siding and decking
Millboard composite decking
Outperform & outlast
Millboard decking combines the natural beauty of timber with the durability of our advanced resin mineral board. Designed and made in the UK, our boards are hand-molded from real oak masters to capture every detail of the grain.
Containing no wood, Millboard decking won’t rot, warp or splinter. It’s exceptionally slip-resistant, withstands everyday wear, and retains its rich color year after year, making it the low-maintenance choice for outdoor spaces that demand both style and longevity.
Envello siding & soffits
Elevate every exterior
Envello pairs the timeless look of timber siding with the durability of our advanced resin mineral board. Hand-molded from real oak masters, it captures every detail of the grain. Containing no wood, it retains its color and character without the need for staining, sealing or painting.
Two profiles, two looks: Board & Batten+ for bold vertical definition, and Shadow Line+ for depth and clean horizontal lines. Lasting protection for a building that asks nothing of you in return.
Why choose Millboard
Ten reasons the difference lasts
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Integrated Lastane® layer
Lastane® surface layer retains integrity of the boards over time and means no splinters on the surface.
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Low maintenance
The surface layer needs no sanding, staining or oiling. Simply clean as the project location requires.
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Hand-molded & colored
Every board is molded from specially selected oak masters and hand-tinted by our craftsmen, so no two boards carry quite the same character.
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A natural wood look
Hand-molded from real timber for an organic wood-grain appearance, replicating the intricate grain detail of natural oak.
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Maximum durability
A fiber-reinforced closed cellular core provides strength and resilience while keeping the weight of each board down.
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Recycled materials
Each board blends 38% recycled content, including limestone diverted from landfill, bonded in a polymer resin.
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Wood-free, warp-free
The composition is entirely wood-free, eliminating rot and warping, and giving insects and pests nothing to attack.
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Quality assurance
A trusted name in construction, accredited to ISO 9001 and specified with confidence on residential and commercial projects alike.
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A long life outdoors
Designed to outlast timber by decades, which makes Millboard siding and decking the more considered choice long after the installation is finished.
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UK-made, globally tested
Designed and manufactured in Warwickshire, tested independently around the world. British craftsmanship, innovation and an unwavering dedication to quality.
Since 1976
The Millboard story
A family business in Warwickshire, making boards that look like the finest oak, but without the associated drawbacks. Hand-molded from selected oak masters, hand-tinted, and fixed with Durafix® lost-head screws that virtually disappear into the Lastane® surface.
Time is the one part of the process we will not shorten. It is why ours still look right years later.
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Durafix® is the lost-head screw that fastens a board, then virtually disappears into it. -
The people who mold, tint and finish every board.
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Plan your space
Four ways to start
- Decking configurator Design your deck on screen and get an accurate list of the boards, fixings and subframe you'll need. Open the configurator
- Free samples See and feel the grain, color and weight for yourself, with samples delivered to your door. Order samples
- Installation guides Step-by-step fixing and detailing advice for every collection, written for the people doing the work. Browse the guides
- Talk to us Pricing, specification and product advice from a team who know Millboard siding and decking inside out. Book a consultation
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