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How much does a 288 sq ft deck cost in Gaithersburg, MD?

A pressure-treated deck build in Gaithersburg, MD
$9,596
288 ft² of deck · typical range $7,270 – $14,540
Typical total$33 per ft² of deck$9,596
Range you should see in bidsthree bids on the same scope normally land inside this$7,270 – $14,540
Labor portion55% of the job — this is the part that moves by city$5,278
Material portion45% — bought at national prices$4,318
Carpenters pay near Gaithersburgabout $32/hr · Washington-Arlington-Alexandria, DC-VA-MD-WV metro$66,790/yr
U.S. mean for the same tradeSOC 47-2031$65,630/yr
Versus the national pricetrade pay here runs +1.8% against the U.S. mean+$92

Notes

  • Where the number comes from. The national price for a pressure-treated deck build is $33 per ft² of deck — pressure-treated deck pricing published for 2026, $25–$50 per ft² installed. Labor is about 55% of that. Carpenters near Gaithersburg, MD average $66,790 a year against a U.S. mean of $65,630 — a factor of 1.018 — so the labor half is scaled by that and the material half is not. Source: BLS OEWS May 2025 for the Washington-Arlington-Alexandria, DC-VA-MD-WV metro area, SOC 47-2031.
  • Why the city matters, not just the state. Trade pay moves inside a state as much as it does between states. Crews do not commute across a state to bid a job, and materials ship at national prices either way — so a metro wage is the honest input here and a state average quietly rounds four different cities into one number.
  • What is in the price: footings, framing, pressure-treated decking, fasteners, a code-compliant railing, and labor.
  • What is not: stairs beyond two steps, permits, ledger repair on the house, and any grading work. These are the lines that turn a $9,596 quote into a $11,995 invoice, so ask about each one before signing.
  • Use this as a bid check, not a quote. It prices an average job in average condition. Difficult access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a per-unit average.

a pressure-treated deck build in Gaithersburg, MD

$9,596 is the typical number, and three bids on the same scope normally land between $7,270 and $14,540.

That is $92 more than the same job priced at the national average.

Why the city changes the number

About 55% of this job is labor — $5,278 of the $9,596 above. Labor is the only part that moves locally; a bundle of material costs what it costs wherever it is nailed down.

Carpenters near Gaithersburg average $66,790 a year, against a U.S. mean of $65,630. That is a factor of 1.018, so the labor half is scaled by it and the material half is not.

Source: BLS OEWS May 2025 for the Washington-Arlington-Alexandria, DC-VA-MD-WV metro area, SOC 47-2031.

What the quote should include

The lines that turn a quote into an invoice

Ask about each of them before you sign. On a job this size they are the difference between $9,596 and something a quarter higher.

Use it as a bid check, not a quote

This prices an average job in average condition. Access, the state of what is being replaced, the season, and a crew booked out three months all move the real number, and none of them are in a national average.

If a bid lands outside $7,270 – $14,540, that is not automatically wrong — but it is the question worth asking out loud.

Nearby sizes

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