Trex decking costs $1,600 to $9,600, averaging about $4,800. That’s $5 to $12 per square foot for just decking boards and $5 to $15 per square foot for installation.

How much does a 20 x20 composite deck cost?

The average deck size is usually around 400 square feet. If we assume a 20′ x 20′ deck, then a rough estimate for pressure treated wood would be around $3,000, whereas the same deck built with a high-quality composite material might cost around $5,6001.

Is Trex cheaper than wood 2021?

Trex Decking can be slightly more pricey than wood decking, depending on the features you choose. A Trex deck costs on average $5 to $12 per square foot, compared to wood decking which costs $3 to $7 per square foot. Pressure treated wood will be more expensive, costing between $6 and $14 per square foot.