Deck Cost Estimator
A deck quote varies enormously by region and by how much framing is included. This calculator shows the line items separately so you can compare a quote against them one by one instead of staring at a single number.
2026 US range: 22–38
Results
Enter your measurements above and press Calculate.
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Questions people ask
How much does a 16×20 deck cost?
320 square feet at $28 per square foot for decking, plus roughly $14 per square foot for framing, plus railing. Materials alone typically run $13,000 to $16,000. Labor roughly doubles it in most markets.
What is not included in a deck estimate?
Permits and drawings, demolition of an existing structure, site grading, post foundations beyond basic pads, and electrical or lighting. On sloped sites grading alone can add thousands.
Is a composite deck cheaper than wood?
Wood decking still has the lowest material cost. Composite starts higher but lasts three to five times longer and needs no annual sealing, which usually makes it cheaper over a 20 year horizon.
How much does decking code cost?
The IRS home office deduction uses $5 per square foot for a home office. A deck is not a qualified improvement — it is not deductible under that rule. Talk to a local tax professional about your situation.
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