What goes into composite deck cost
A composite deck usually costs $30 to $60 per square foot installed. The boards cost more than wood, but they never need staining, will not splinter, and hold their color for decades, so the upkeep savings add up.
Premium capped composite, hidden fasteners, and elaborate railings sit at the top of the range. Enter your deck area for a planning estimate, and remember the substructure is still pressure-treated framing under the composite surface.
Ranges reflect materials plus typical professional installation across the U.S. Your actual price depends on site conditions, access, gates or stairs, permits, and local labor rates. Always collect a couple of local bids before you set a budget.