How to install outdoor WPC decking?

September 14, 2024

How do you install WPC decking boards ?


Are you looking for a guide to install WPC decking during holidays, or do you want to ensure the installer does his job correctly? 

This content is your essential guide to WPC decking installation.

We explained everything from selecting the right materials to the final touch of your wood plastic composite decking installation.


Required Materials & Tools


WPC decking is a perfect option for outdoor space if installed correctly. For this purpose, you’ll need some tools.


You’ll require WPC decking boards, joists, and fasteners specifically designed for composite materials.

Note that the quality of the installation materials is as important as the quality of the composite decking board.


Here’s a comprehensive list of materials and tools to ensure your wood plastic composite decking installation project is successful and enjoyable.


  • WPC decking boards
  • Joists
  • Starter clips
  • Screws
  • End caps
  • Expansion clips
  • Fascia boards
  • Concrete or compacted gravel (optional for the base)
  • Tape measure
  • Drill
  • Rubber mallet
  • String line
  • Saw
  • Decking board spacer

With these items, you will have a successful outdoor composite decking installation!


Wood Plastic Composite Decking Installation Steps


Installing WPC decking is a straightforward process that can significantly enhance the aesthetic and value of your outdoor space.

1. Preparation


Before you begin, ensure you have all the necessary materials and tools as we mentioned.

Clear the area where you will install the decking and ensure the ground is level.

2. Foundation


Start by laying down a solid foundation. Make sure that the ground is level and free from any junk.

If you plan to install WPC decking on the soil, creating a sturdy base using compacted gravel is essential. This will ensure that your installation remains stable and secure.

3. Joist Installation


Install the joists that will support your decking boards. They should be spaced no more than 400 mm apart to provide adequate support.


Secure the joists to your foundation, ensuring they are straight and level. This will prevent any warping or unevenness in your decking.

4. Decking Layout


Plan the layout of your WPC decking boards. Consider the direction you want the boards to run and any patterns or designs you wish to create.

5. Board Installation


Begin installing your decking boards. Attach them to the joists using suitable fasteners, such as installing any type of wood polymer composite.

To avoid warping or buckling over time, leaving a small gap between each board is important.


6. Finishing Touches


Once all the boards are in place, add any finishing touches, such as skirting, railings, or stairs. Seal the edges with end caps or trim for a polished look.

7. Maintenance


Although WPC decking requires minimal maintenance, regular cleaning will keep it looking its best and extend its lifespan.


Remember, WPC decking combines the beauty of wood with the durability of plastic, which makes it ideal for outdoor use.


Professional WPC Decking Installation with UNCLEWOOD


Although outdoor composite decking installation is a fun activity that many decide to do during holidays, it has some technical practices you may not know about! 


If you’re seeking precision and perfection in your outdoor decking project, UNCLEWOOD offers a team of seasoned professionals ready to assist. From traditional wood siding to cutting-edge materials requiring meticulous handling, our specialists are equipped to handle every aspect of your installation.

Trust in UNCLEWOOD to elevate your outdoor space with unmatched craftsmanship and durability.



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