How long composite decking boards last depends on the grade of decking that you purchase. We shall come back to that later. Know this that composite decking, as well as other wood-plastic materials, last longer than wood.

 It means that you will use them for a long time, even past their warranty before they wear out. The issue of guarantee will be discussed in detail later. 

What is Composite decking?

Composite decking boards or plastic wood decking is a synthetic material made from wood fibre and plastic. Note that in this write-up, we will use wood-plastic decking or wood-plastics composite to refer to composite decking. What happens in the process of making composite decking is straightforward. 

The maker of the decking takes the materials to a factory and processes them. After processing them, they will cut the finished product into different sizes. The WPC boards are what you will purchase in the market as composite decking boards.

What Makes Composite Decking Boards Unique?

Wood-plastic decking is unique for many reasons. 

Plastic-Wood Decking Is Durable

That wood-plastic decking is strong is something you should not doubt. If you install composite decking boards in your yard or garden, the decking will withstand the weight of people standing on it. It is because the strength to weight ratio of composite decking is high.

 What this implies is that wood plastic decking is lightweight. Unlike other decking materials, you can easily carry composite decking boards. Even though plastic wood boards are light, they are firm. So, the durability of composite decking lies in its strength. 

Plastic-Wood Decking Required Little Maintenance

Wood-plastic decking does not require elaborate back-breaking maintenance that will consume all your energy. To appreciate this, let us consider wood decking. Timber decking contains 100% wood. This timber decking is susceptible to anything that can attack wood. 

So, insects like termites can eat into your wood decking. Also, mould and mildew can grow on your wood decking. Aside from mould and mildew, timber decking can absorb water and swell.

When they increase, the wood decking will splinter or warp. If the timber decking does not distort, it will rot. To prevent all these things from happening, you have to maintain your wood decking. 

Keeping your timber decking required sealing, oiling, sanding, painting or staining. Also, this process consumes your cash because you will spend money to acquire the materials you will use to maintain your decking.

 Composite decking boards, on the other hand, does not require sealing, staining or painting. It is because WPC decking is durable. But this does not suggest that you won’t maintain your composite decking at all. You still have to sweep it if dirt is on it.

 Also, if there is grease or oil stain on the surface, you have to wash it with soapy water and a soft brush. The point is, composite decking boards are preferred to wood decking because they require little maintenance.

Plastic-Wood Decking Last Longer than Wood

Now to the issue of how long a composite decking lasts. Wood-plastic decking can last more than 10-years. Some even can last more than 25-years. The lifespan of composite decking boards depends on the grade. Composite Warehouse Timeless collections of composite decking have a 25-years warranty. 

At the same time, their Essential varieties of composite decking boards have a 10-years warranty. This warranty does not imply that it will automatically spoil after 10 or 25 years.

Instead, it means that you can use your decking for the period and be sure that nothing will happen to it. Of course, that is if you install and maintain your wood-plastic decking the way you should. 

outdoor decking boards

After the warranty, your decking will still last for as long as you want. Note that the warranty covers the colour of the decking. WPC boards comes with beautiful pigment that makes them attractive. This pigment will not fade quickly like that of a wood decking.

 Even after passing the warranty, your decking will lose only a little amount of colour. This loss is not an issue because you can restore the colour of your composite decking boards. How does wood decking compare to this? Wood decking colour fades quickly, that is why it requires regular painting or staining. 

Also, wood decking will not last as long as composite decking. It will not last for up to 25 years with little maintenance. It makes composite decking unique.


Composite decking boards will last for a long time. The lifespan of a wood-plastic decking depends on the grade and the warranty. Some have a 10 years warranty while others have a 25 years warranty.

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