Does Composite Decking Swell?

Learn Decking
Pergola & Garden Furniture

Composite decking can best be described as an alternative to wood. It is cost-efficient and long-lasting. Composite decking is manufactured from the use of plastic and wood. There is an increasing trend in the use of composite decking. It is becoming a household name as homeowners are taking preference over wood.

Composite decking has a long durational use; it can withstand harsh weather conditions because of the materials used, for example, wood and plastic. And unlike wooden decks, composite decking requires little maintenance, with a little washing with soap and water from time to time is all that is required to keep it clean and looking good. It also adds beauty and luxury because of its colour variety and aesthetics.

And with kids, having an attractive colour will add fun outdoors with the utmost comfort that is provided by your composite decking. It is a safe place for your family to spend time outdoors while protecting against accidental falls. It is proven to be splinter-free, insect-proof, has no cracks, and has a range of colours that takes longer to fade. The manufacture of composite decking makes it eco-friendly since they are mostly produced from recycled wood and plastic. Trees do not have to be cut down as with wood decking. Composite decking can be used virtually everywhere, hospitals, homes, and backyards.  


does composite decking swell

Best Composite Decking for Continued Sun (UV) Exposure

Composite decking comes in different designs for you to choose from. It doesn’t matter what you settle for; each composite decking material gives you a unique and natural feel of wood. You are at liberty to choose composite decking between smooth surfaces or wood grain. Its high resistance to wear and tear will be perfect for installation in public places

No expertise is required for the installation of composite decking. It is simply the assembly of the different tiles or planks to fit together and then secure them to the substructure.  

You must understand that wood has a high moisture absorption rate. It is composed of more than half moisture content. And because of this, composite decking both expands and contracts against the weather conditions from the place it is installed. 

Board Spacing

When composite decking is widely spaced by leaving room at installations, no matter how small, it opens a window to moisture to gain access. Composite decking is manufactured from wood; this means it can absorb water though not easily. Think of the wood like someone that has been starved for a long time, too, although there is constant improvement in the production of highly resistant wood. With a low moisture-absorbent rate, water that gets trapped around the composite decking will take longer to dry up.

Water Absorption

Composite decking comes at different prices, and its quality can be assessed through the price of a product. When considering durability and the advantages of installing composite decking, you should go for the best quality. The type of composite decking determines the rate of moisture absorption. 

Regarding water resistance or moisture absorbing rate with composite decking largely depends on processing variables and the composition of the decking. That means some composite decking materials are manufactured with a low percentage of water resistance, while some have a higher percentage rate of moisture resistance.

Once your composite decking absorbs water, drying or getting rid of it will be difficult. Naturally, when a block of wood gets wet, it swells. So, with water trapped in your composite decking, the inevitable swelling of your composite decking boards will occur. 

To avoid the swelling of your composite decking, you should seek clarity when making your purchase. Request for composite decking that is manufactured from little wood and more plastic materials. 

There has been a consistent experiment in the composite decking industry. Certainly, there will be a breakthrough soon in manufacturing a composite decking that will be free from swelling by having a zero water resistance rate.


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