What Is Composite Decking Made Of and How Is It Made?

If you’re considering upgrading your outdoor space, composite decking is a popular choice thanks to its durability, low maintenance, and modern look. But what exactly goes into composite decking, and how is it made?

What’s in Composite Decking? Composite decking is created from a blend of recycled materials, typically:

• Wood fibers – such as sawdust or wood chips, for natural strength and texture.

• Plastic – often recycled polyethylene or polypropylene, for durability and moisture resistance.

• Binding agents and pigments – to hold everything together and provide long-lasting color.

This mix combines the natural look of wood with the strength and weather-resistance of plastics.

How It’s Made

The materials are blended together and heated to form a dense, durable material. This mixture is then shaped into deck boards using an extrusion or molding process. Many boards are capped with a protective outer layer that resists fading, staining, and scratching, giving them a longer lifespan with less upkeep. The result? A deck that looks like wood but lasts longer, requires little maintenance, and is more eco-friendly thanks to recycled content.

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