Composite deck cost in Olympia, WA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $12,700 – $25,500
- Per sq ft
- $42.50 – $84.50
- before permit
- Versus US midpoint
- +6%
- US $18,100
- Rank of 300 metros
- #51
- 1 = most expensive
Olympia homeowners pay roughly $12,700 to $25,500 to build a composite deck at 300 sq ft, or $42.50 to $84.50 per sq ft (permit not included). Against the US midpoint, Olympia is 6% higher. Carpenters earn a median of $30.41 an hour in the Olympia area, 4% above the US median of $29.12.
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Estimated cost for 300 sq ft in Olympia, WA, standard level
$16,600 to $21,700
About $55 to $72 per sq ft before permits. Labor is about 60% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $6,550 | $8,550 |
| Labor | $9,950 | $13,000 |
| Permits and fees | $85 | $120 |
| Total | $16,600 | $21,700 |
Cost breakdown for 300 sq ft in Olympia, WA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $5,050 | $7,550 | $10,100 | 40% |
| Labor | $7,650 | $11,500 | $15,300 | 60% |
| Permits and fees | $50 | $100 | $160 | 1% |
| Total | $12,700 | $19,100 | $25,500 | 100% |
Why Olympia prices look the way they do
We price the labor side from BLS wage data for 2 trades: carpenters at 80%, construction laborers at 20%. Weighted together, Olympia wages are 1.06 times the national level. Labor makes up about 60% of the midpoint estimate (60% at national prices).
On the materials line, the BEA goods price index for the Olympia metro is 105.0 (US = 100). The midpoint materials bill for 300 sq ft comes to $7,550, compared with $7,200 at national prices. Permit and inspection fees are scaled by the broader index (103.7) and land at $50 to $160.
Local wages behind the labor line
Wages are the part of this estimate that changes most from town to town. 2 trades carry the job here, and each is compared with its US median. The weighted result for Olympia is 1.06 times the national level.
For carpenters (47-2031, weighted 80%) the local median is $30.41 an hour, which is 4% above the national $29.12. The middle half of them earn between $28.58 and $36.82 an hour. BLS counts 800 of them working in the area, 61.4 for every 10,000 jobs (US: 43.1), so the local bench is deeper than average.
Construction laborers (47-2061), 20% of the weighting: a median of $25.52 an hour, 13% above the US median of $22.66. The middle half of them earn between $21.90 and $33.85 an hour. About 730 work in the metro. That is 56.0 per 10,000 jobs, compared with 70.5 nationally, so expect fewer local crews to bid.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($36.82 an hour) instead of the median, the labor line grows by about $1,900. At the 25th percentile ($28.58) it shrinks by about $540. The total moves by 9.9% or 2.8%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 130,300 jobs in the Olympia-Lacey-Tumwater area. That makes it the 167th largest of the 300 metros we cover, with 0.08% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 80% | $28.58 | $30.41 | $36.82 | $29.12 | 1.04 | metro |
| Construction laborers (47-2061) | 20% | $21.90 | $25.52 | $33.85 | $22.66 | 1.13 | metro |
| Blended | 100% | 1.06 | |||||
Olympia against nearby metros and the rest of Washington
Of the five closest metros, 1 is cheaper than Olympia. Yakima is the lowest at about $18,900 (midpoint, 300 sq ft), 105 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Olympia, WAthis page | $12,700 – $25,500 | $19,100 | |
| Bremerton, WA50 miles | $12,900 – $25,900 | $19,400 | +2% |
| Seattle, WA60 miles | $14,100 – $28,300 | $21,200 | +11% |
| Portland, OR95 miles | $13,800 – $27,600 | $20,700 | +8% |
| Yakima, WA105 miles | $12,600 – $25,200 | $18,900 | −1% |
| Bellingham, WA140 miles | $13,800 – $27,700 | $20,800 | +9% |
| Washington (statewide) | $13,900 – $27,800 | $20,800 | +9% |
| United States | $12,100 – $24,200 | $18,100 | −5% |
Across 300 US metros, Olympia comes in at #51 from the top. The priciest is Honolulu, HI at $25,200; the cheapest is Brownsville, TX at $13,500 (midpoints, 300 sq ft). Statewide, Olympia is 8% below the Washington figure.
Other Washington metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Seattle, WA | 2,086,210 jobs | $14,100 – $28,300 | $21,200 | +11% |
| Spokane, WA | 255,820 jobs | $12,500 – $25,100 | $18,800 | −2% |
| Kennewick, WA | 129,490 jobs | $12,900 – $25,800 | $19,300 | +1% |
| Yakima, WA | 97,010 jobs | $12,600 – $25,200 | $18,900 | −1% |
| Bremerton, WA | 93,740 jobs | $12,900 – $25,900 | $19,400 | +2% |
| Bellingham, WA | 91,390 jobs | $13,800 – $27,700 | $20,800 | +9% |
Cities with a workforce like Olympia's
Big cities and small ones price differently, so here is Olympia against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Fayetteville, NC | 131,430 jobs | $10,500 – $21,000 | $15,700 | −18% |
| Waco, TX | 129,860 jobs | $10,200 – $20,400 | $15,300 | −20% |
| South Bend, IN | 131,670 jobs | $12,000 – $24,000 | $18,000 | −6% |
| Kennewick, WA | 129,490 jobs | $12,900 – $25,800 | $19,300 | +1% |
Add-ons priced for Olympia
Extras are quoted nationally and then scaled to Olympia by the average of the local wage index (1.06) and goods index (1.05), a factor of 1.06. Tick any of them in the estimator above to add them to your total. Treat these as planning figures: an add-on touches different trades than the main job, so the scaling is an approximation.
| Add-on | Local range |
|---|---|
| Add a deck railing (approx. 0.3 ft per sq ft) | $1,900 – $5,700 |
When to schedule composite deck in Olympia
We use NOAA's 1991-2020 climate normals for Olympia Ap (5 miles from the city center). These are 30-year monthly averages, not forecasts.
Weather is not a serious constraint for exterior installation in Olympia: no month in the averages is cold enough (an average daytime high under 45°F) or hot enough (an average daytime high of 90°F or more) to rule it out, so the workable window is all year.
Olympia gets about 51 inches of precipitation in a normal year, including roughly 4 inches of snow. The wettest months are January, November and December (8.2 inches in November). The station averages about 7 days a year at 90°F or above.
Does the season change the price? Probably, but we do not have a sourced seasonal price curve, so the estimator shows a year-round figure and does not adjust by month. When you collect quotes, ask whether scheduling in a slower month gets a better rate.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 46 | 33 | 7.8 | Workable |
| Feb | 49 | 32 | 5.1 | Workable |
| Mar | 54 | 35 | 5.7 | Workable |
| Apr | 59 | 38 | 3.7 | Workable |
| May | 66 | 43 | 2.3 | Workable |
| Jun | 71 | 47 | 1.5 | Workable |
| Jul | 78 | 51 | 0.5 | Workable |
| Aug | 78 | 51 | 1.0 | Workable |
| Sep | 72 | 46 | 2.0 | Workable |
| Oct | 60 | 41 | 5.1 | Workable |
| Nov | 51 | 36 | 8.2 | Workable |
| Dec | 45 | 33 | 7.8 | Workable |
Composite deck: what moves the price in Olympia
Drainage
Ground-level decks over poorly draining yards may need $1,000-$4,000 of drainage work first.
Engineering
Large or complex decks may need a structural engineer at $100-$220 an hour to get a permit.
Board grade
Composite materials run $16-$32 per sq ft and the installed price is $40-$80 per sq ft, including the substructure (HomeGuide).
Cost by quality level and size in Olympia
Three bands are cut from the same cited range and localized for Olympia wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 4 common sizes.
Basic
$12,700 to $17,800
Entry-level composite boards, low deck, simple shape
Standard
$16,600 to $21,700
Mid-grade capped boards with railing and stairs
Premium
$20,400 to $25,500
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $5,100 – $7,200 | $6,700 – $8,750 | $8,250 – $10,300 |
| 12x12 (144 sq ft) | $6,150 – $8,600 | $8,000 – $10,500 | $9,850 – $12,300 |
| 16x20 (320 sq ft) | $13,600 – $19,000 | $17,700 – $23,100 | $21,800 – $27,200 |
| 20x20 (400 sq ft) | $17,000 – $23,800 | $22,100 – $28,900 | $27,200 – $34,000 |
What nearby projects cost in Olympia
Because every project leans on different trades, Olympia's wage level does not move all prices equally. Against the US midpoint, concrete patio runs +17% and wood deck +5%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $7,950 – $16,000 | +5% |
| Concrete patio | 300 sq ft | $1,400 – $4,700 | +17% |
| Paver patio | 300 sq ft | $3,400 – $6,200 | +14% |
| Gutters | 160 linear ft | $1,500 – $4,750 | +15% |
Get 3 local quotes
Tell us about the job and we will try to connect you with up to three local contractors for written quotes. It is free and you are under no obligation to hire. Your estimate of $16,600 to $21,700 for Olympia, WA is attached.
A detailed PDF report of this estimate, $9
Multi-page report for Olympia, WA: low, typical and high cost, a line-item breakdown of materials and labor by trade, permit notes, the best months to schedule, a quote comparison sheet, red flags, questions for contractors, checklists and every source. Save your estimate above, preview page 1 free, and unlock the full report for $9 one-time, or get every report with CostLocal Pro.
Composite deck in Olympia: your questions
+How much does it cost to build a composite deck in Olympia?
For 300 sq ft, expect $12,700 to $25,500 in the Olympia area. A standard-spec job lands at $16,600 to $21,700. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in Olympia?
About $42.50 to $84.50 per sq ft for materials and labor, plus $50 to $160 for the permit if one is needed. The US range is $40 to $80.
+Is composite deck cheaper in Olympia or Bremerton?
Bremerton is 50 miles away. The midpoint for 300 sq ft there is $19,400, which is 2% more than Olympia ($19,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Olympia?
About 60% at the midpoint, or $11,500 out of $19,100. Materials are 40% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in Olympia?
$13,600 to $27,200. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in Olympia?
Often, but rules are set by your city or county building office, so call before you hire. Budget $50 to $160 for fees in the Olympia area (our national range of $50 to $150 scaled by the local price level).
+Is Olympia expensive for composite deck compared with the rest of Washington?
Olympia is 8% below the Washington statewide estimate ($20,800 at the midpoint). We cover 7 metros in Washington; see the state page to compare them.
+What do carpenters earn in Olympia?
The BLS median is $30.41 an hour in the Olympia area, compared with $29.12 nationally. The 25th to 75th percentile range is $28.58 to $36.82.
+What do basic and premium composite deck work cost in Olympia?
For 300 sq ft, basic work runs $12,700 to $17,800 and premium work $20,400 to $25,500. Basic means: entry-level composite boards, low deck, simple shape. Premium means: premium capped or PVC boards, multi-level, hidden fasteners.
+Is there a bad season to build a composite deck in Olympia?
Not from a temperature point of view. NOAA's 1991-2020 normals show no month with a freezing-level overnight low or a 90°F-plus average high, so timing is mostly about contractor availability and rain.
+What does "add a deck railing" add in Olympia?
$1,900 to $5,700 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near Olympia
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does Composite Decking Cost? (2026) (accessed November 4, 2026)
- HomeGuide: 2026 Building Permit Costs | Fees & Cost Calculator (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
- NOAA NCEI U.S. Climate Normals, 1991-2020