Millboard decking in Chalfont St Giles – a modern terrace for real outdoor living

Every now and then a project comes along where house, garden and lifestyle all line up perfectly.
This modern home was already full of light and clean geometry inside – but outside, it was crying out for a space to match. The answer was a complete garden redesign with a strong focus on a new Millboard decking terrace, designed by Karl Harrison and built by his professional in-house team.

This is Millboard decking by Karl Harrison at its best: made-to-measure, beautifully detailed and ready for everyday life.


From tired patio to a statement Millboard terrace

The existing outdoor space was overworked and underwhelming – hard surfaces, awkward levels and no real flow from house to garden. The brief was simple but ambitious:

  • Create a main terrace that feels like a natural extension of the living space.
  • Use Millboard decking to bring warmth, texture and long-lasting performance.
  • Respect the geometry of the architecture while softening the space with subtle curves.

Karl began by reading the house – the lines of the glazing, the proportions of the walls, the way light moves across the property. The new deck layout echoes these shapes, so nothing feels forced; the terrace looks as if it has always belonged there.


Curves, chevrons and clever transitions

This Millboard deck is not a simple rectangle. It’s a carefully composed series of spaces that invite you to move, pause and enjoy the garden from different angles.

  • Soft curves ease you away from the house and into the garden, gently breaking up the hard architecture without fighting it.
  • Transition walkways guide you between zones – from the main terrace to side paths and secondary areas – so the whole garden feels naturally connected.
  • A dedicated dining terrace with a chevron design brings a tailored, almost interior feel to the outside space. The chevron layout adds direction, energy and a sense of occasion; this is where long summer evenings really happen.

Every board, every curve and every junction has been thought through. This is the difference between “having some decking” and having a designed deck.


Colour selection – a match made in heaven

Colour is where many decking projects fall short. Here, it’s where everything comes together.

Karl chose Millboard’s Antiqued Enhanced Grain as the main deck finish – a softly weathered tone that harmonises beautifully with the architecture and interior palette. It picks up subtle colours from the surrounding materials and planting, making the terrace feel calm and cohesive rather than loud or overpowering.

To frame the space and sharpen the lines, the deck is finished with a trim in Millboard’s black decking, Burnt Cedar. This rich, deep tone creates a tailored border, much like a picture frame around a favourite artwork. Antiqued and Burnt Cedar together are a match made in heaven – warm, elegant and unmistakably contemporary.


Why Millboard? Beauty, performance and confidence

Millboard is not a typical composite decking. It is engineered for:

  • High performance – resistant to rot, splintering and warping
  • Low maintenance – no regular staining or painting
  • Authentic texture – moulded from real timber for a natural look
  • All-weather reliability – designed to cope with the British climate

For a busy home and a hard-working terrace, that combination is essential. You get the visual warmth of timber with modern performance and peace of mind.


Karl’s Millboard expertise – part of the story since 2007

When you choose Millboard decking by Karl Harrison, you’re not just picking a product – you’re choosing experience. Karl has been involved with the Millboard PRO scheme since its early days in 2007, working alongside the brand as it has grown and evolved.

Over the years he has:

  • Designed and installed several thousand square metres of Millboard decking
  • Worked on projects from compact town gardens to expansive contemporary homes
  • Developed proven details for steps, edges, curves, lighting and drainage

That depth of experience means Karl and his team know how Millboard behaves, how to detail it beautifully and how to get the absolute best from the material in real gardens.


Design-led landscaping, professionally built

This decking terrace is the centerpiece of a whole-garden landscaping scheme. Paths, planting, levels and views have all been considered so the deck doesn’t just sit in the garden – it belongs there.

With Karl Harrison Landscapes, design and build go hand-in-hand:

  • Design service: Karl listens carefully to how you live, what you love and how you want your garden to feel. From there, he creates a deck layout that respects your home, your architecture and your budget – including style, use and realistic investment for both design and construction.
  • Professional in-house team: The same people who understand the design are the ones who build it. No anonymous subcontractors – just a skilled, permanent team who take pride in the finish and the finer details.

The result? A cover-story-worthy terrace that feels effortless to use, yet is underpinned by rigorous planning and craftsmanship.


Ready to design your own Millboard deck?

If you’re a homeowner dreaming of a beautiful, practical deck as part of your next garden transformation, Karl would love to help you explore what’s possible.

Whether your home is ultra-modern or characterful and traditional, Millboard decking by Karl Harrison can be tailored to suit your architecture, your lifestyle and your investment.

👉 Contact Karl now to arrange a garden consultation and start the conversation about your own Millboard terrace:

  • Discuss style, use and budget
  • Explore materials, colours and detailing
  • Plan a deck that feels made for the way you live

Your garden has the potential to be so much more than a leftover space. With the right design and a professional build, it can become your favourite “room” in the house – outdoors.