Answer
Jun 20, 2025 - 12:39 PM
The cost of a 20x20 composite deck can vary significantly based on factors such as the quality of materials, location, and labor costs. On average, composite decking materials range from $25 to $45 per square foot, including installation. Therefore, for a 400 square foot deck, you might expect to pay between $10,000 and $18,000, though prices can be higher or lower depending on the specific circumstances. You can simply enter your square footage on compositedeckdirect.com to get an exact cost.
