How Does This Calculator Work?
This is a straightforward multiplication: deck area × your material cost per square foot. It does not include labor, framing, footings, or railings, which are typically priced separately.
Deck material costs vary widely by decking type (pressure-treated wood, cedar, composite). Once you know your area and a per-square-foot material price, this calculator gives you a fast total estimate.
Example Calculation
Composite Deck Example
A 200 sq ft deck at $12 per sq ft in composite decking.
200 × $12 = $2,400 estimated material cost.
Tips
Get a per-square-foot quote from your material supplier for the specific decking product you plan to use — composite decking typically costs more per square foot than pressure-treated lumber, but requires less maintenance.