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 From Start to Finish > Buying Guides > Composite Decking vs Pressure Treated Lumber Decking
Composite Decking vs
Pressure Treated Lumber Decking

When it comes to building a new deck, one of the first decisions you will have to make is which construction material to use. The two main materials for decking are composite and pressure treated deck boards. Each type has its own benefits and disadvantages. Only after taking all factors into account, you will be able to make your choice.

Composite:  

In the world of decking, composite is a newer material. It is made from a combination of PVC (polyvinyl chloride) and hardwood or softwood fibers.

The benefits of composite are numerous. This material can last a lifetime, but usually it has a 20 year warranty. As you can imagine, it is very durable and low maintenance. This material does not rot, splinter, crack, or warp. And, compared to pressure treated lumber, composite does not fade or wear as quickly. Best of all, no staining or painting is required. For those with busy lifestyles, the low maintenance of composite offers terrific value.

Esthetically pleasing, composite is an eye-catcher. Some admirers even say it is glossier and brighter than any paint or stain. Producers stay on top of the latest trends in colours, and some even give the product a wood grain look for extra appeal. Since composite is produced in mass quantities in a factory, it offers uniformity in its colour, weight, and size. Composite will continue looking great for years to come.

Despite all the advantages of composite decking, there are some disadvantages as well. As previously mentioned, composite is low maintenance (not no maintenance). It still needs to be washed regularly with detergent, a sponge and a garden hose. Washing will take away any dirt or mildew. Since composite is not as porous as wood, any mildew that develops only grows superficially and can be easily removed. Unfortunately, if any scratches or blemishes appear, they cannot be removed by sanding. And finally, the major drawback of composite is its price. The cost of materials is quite a bit higher than with pressure treated decking, but you will see savings in its low maintenance and long life span.

Wood:  

Pressure treated lumber has been used for years in the construction of decks. This lumber has been specially treated to withstand the elements better than non-treated wood. The treatment requires the wood to be immersed in a liquid preservative. Then, the wood is put into a pressure chamber that pushes the preservative into the core of the wood.

Pressure treated wood is definitely the most popular choice of decking. This is probably because it is the most affordable option. Another reason consumers like wood decks is because they can be painted in a variety of colours. When the deck gets scratches or blemishes, they can be sanded off quite easily. And if the wood is well maintained, these decks can last up to 40 years.

The major drawback to pressure treated wood is its maintenance. Each year your deck should be cleaned to remove dirt, moss, algae, and mould. Ideally, it needs to be protected with an anti-UV treatment, stain, and paint each season. Although pressure treated lumber is somewhat resistant to moisture, the water sealant is best used annually to protect against splintering and discolouration. Other problems to look out for include rotting, splitting, and termite damage.

With a natural product like wood, there are bound to be some other imperfections. Wood grains vary and when it is painted by hand the result can be spotty or uneven tones. Also, wood is not uniform in size and weight. You will have pieces that are cracked, nicked, or contain large knots. Given the fact that wood is naturally biodegradable, it has a shorter lifespan than composite.

Decks are an investment that can offer years of enjoyment. By evaluating your deck needs and wants, you will be able to make an educated decision.

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