If you are looking for a way to enhance your exterior space with composite decking and want to stand out from the crowd, then it may be fun and lovely to build a curved decking. Curved decking is beautifully unique and will provide a more contemporary feel to your space in comparison to standard decking. You can utilise different shapes and find what suits your surroundings best. This option is also great for homeowners with small gardens, as the decking won’t take up all the space.

curved installed decking


Curved decking in a garden offers several advantages. Firstly, it adds visual interest and a unique focal point, creating a more aesthetically pleasing outdoor space. The curves soften the lines and can complement the natural flow of the landscape, lending a more organic and inviting feel.

Functionally, curved decking can optimise space utilisation by creating various zones for seating, entertaining, or gardening within a cohesive design. It also allows for more creative and flexible layouts compared to traditional rectangular decks, accommodating irregular terrain more easily. Additionally, curved decks often provide better flow and circulation, especially in smaller spaces, by guiding movement and creating natural pathways. This can enhance the overall usability and enjoyment of the garden area.

How to Build a Curved Composite Deck

curved installation
  • Before construction, create a detailed plan or blueprint of the curved deck. This blueprint should outline the curvature, dimensions, support structures, and any additional features or patterns you wish to incorporate.
  • Once you’ve mapped out the design, prepare the area where the deck will be installed. Clear the space, level the ground, and mark the deck’s perimeter. Consider whether you’ll need support beams or footings for the curved sections, as this will depend on the design’s complexity and weight distribution.
  • Building the frame is a critical step. Use pressure-treated timber or composite joists for the substructure to ensure durability and longevity. The frame must follow the curves accurately and provide adequate support for the decking boards. Installing joists closer together might be necessary for curved areas to maintain the deck’s structural integrity.
  • With the frame in place, it’s time to install the composite decking boards. For curved sections, you may need to cut the boards into smaller segments to fit the curvature. Alternatively, some composites can be heated and bent to achieve the desired curve. This method often requires specialised equipment and expertise, so consult with professionals if needed.
  • Secure the decking boards to the frame using appropriate fasteners or clips, following the manufacturer’s guidelines. Ensure that each board aligns correctly with the curvature to achieve a smooth and uniform appearance.
  • Finishing touches can elevate the deck’s aesthetics and functionality. Consider adding railing systems, stairs, lighting, or built-in seating to complement the curved design.
  • Throughout the construction process, attention to detail is crucial. Double-check measurements, ensure proper fastening, and periodically inspect the structure for any issues. Weather conditions can affect composite materials, so take precautions during installation to prevent warping or other damage.

It is important to note that we recommend adding an excess of at least 10%, even more, with complex designs to allow for wastage. With curved decking, there will be lots more cuts made and, in turn, much more wastage in comparison to a regular decking project. If you are not a DIYer, we advise you to hire a professional fitter for safety reasons.


Overall, a curved deck can elevate the visual appeal, functionality, and character of a homeowner’s garden, offering a unique and inviting outdoor living space.

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