Composite deck cost in San Diego, CA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $13,900 – $27,900
- Per sq ft
- $46.50 – $92.50
- before permit
- Versus US midpoint
- +16%
- US $18,100
- Rank of 300 metros
- #19
- 1 = most expensive
If you want to build a composite deck in San Diego, plan on $13,900 to $27,900 for 300 sq ft, all in. Per sq ft, that is $46.50 to $92.50 for materials and labor, with the permit on top. The local midpoint runs 16% higher than the national one. Carpenters earn a median of $35.19 an hour in the San Diego area, 21% above the US median of $29.12.
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Estimated cost for 300 sq ft in San Diego, CA, standard level
$18,100 to $23,700
About $60 to $78.50 per sq ft before permits. Labor is about 62% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $6,750 | $8,800 |
| Labor | $11,300 | $14,800 |
| Permits and fees | $90 | $130 |
| Total | $18,100 | $23,700 |
Cost breakdown for 300 sq ft in San Diego, CA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $5,200 | $7,750 | $10,400 | 37% |
| Labor | $8,700 | $13,100 | $17,400 | 62% |
| Permits and fees | $55 | $110 | $170 | 1% |
| Total | $13,900 | $20,900 | $27,900 | 100% |
What is behind the San Diego number
We price the labor side from BLS wage data for 2 trades: carpenters at 80%, construction laborers at 20%. Weighted together, San Diego wages are 1.21 times the national level. Labor makes up about 62% of the midpoint estimate (60% at national prices).
On the materials line, the BEA goods price index for the San Diego metro is 108.0 (US = 100). The midpoint materials bill for 300 sq ft comes to $7,750, compared with $7,200 at national prices. Permit and inspection fees are scaled by the broader index (111.9) and land at $55 to $170.
Climate in San Diego: timing your composite deck job
We use NOAA's 1991-2020 climate normals for San Diego Montgomery Fld (in the city). These are 30-year monthly averages, not forecasts.
Weather is not a serious constraint for exterior installation in San Diego: 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.
San Diego gets about 11 inches of precipitation in a normal year. The wettest months are January, February and March (2.6 inches in February). The station averages about 16 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 | 67 | 46 | 2.3 | Workable |
| Feb | 67 | 47 | 2.6 | Workable |
| Mar | 69 | 50 | 1.6 | Workable |
| Apr | 71 | 52 | 0.8 | Workable |
| May | 72 | 57 | 0.3 | Workable |
| Jun | 75 | 60 | 0.1 | Workable |
| Jul | 80 | 64 | 0.1 | Workable |
| Aug | 82 | 65 | 0.0 | Workable |
| Sep | 81 | 64 | 0.2 | Workable |
| Oct | 78 | 58 | 0.5 | Workable |
| Nov | 73 | 50 | 0.9 | Workable |
| Dec | 67 | 45 | 1.6 | Workable |
Related projects, priced for San Diego
Because every project leans on different trades, San Diego's wage level does not move all prices equally. Against the US midpoint, concrete patio runs +15% and paver patio +12%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $8,600 – $17,200 | +14% |
| Concrete patio | 300 sq ft | $1,400 – $4,600 | +15% |
| Paver patio | 300 sq ft | $3,350 – $6,100 | +12% |
| Gutters | 160 linear ft | $1,450 – $4,750 | +13% |
Optional extras in San Diego
Extras are quoted nationally and then scaled to San Diego by the average of the local wage index (1.21) and goods index (1.08), a factor of 1.14. 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) | $2,050 – $6,200 |
San Diego labor market for composite deck
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 San Diego is 1.21 times the national level.
For carpenters (47-2031, weighted 80%) the local median is $35.19 an hour, which is 21% above the national $29.12. The middle half of them earn between $28.16 and $46.12 an hour. BLS counts 8,710 of them working in the area, 56.6 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 $27.49 an hour, 21% above the US median of $22.66. The middle half of them earn between $23.31 and $34.32 an hour. About 8,850 work in the metro. That is 57.5 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 ($46.12 an hour) instead of the median, the labor line grows by about $3,250. At the 25th percentile ($28.16) it shrinks by about $2,100. The total moves by 15.5% or 10.0%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 1,538,060 jobs in the San Diego-Chula Vista-Carlsbad area. That makes it the 18th largest of the 300 metros we cover, with 0.99% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 80% | $28.16 | $35.19 | $46.12 | $29.12 | 1.21 | metro |
| Construction laborers (47-2061) | 20% | $23.31 | $27.49 | $34.32 | $22.66 | 1.21 | metro |
| Blended | 100% | 1.21 | |||||
Specs and site conditions that change a San Diego bid
Board grade
Composite materials run $16-$32 per sq ft and the installed price is $40-$80 per sq ft, including the substructure (HomeGuide).
Labor
Labor for composite is $24-$48 per sq ft, higher than wood because the boards need extra parts and more careful assembly.
Drainage
Ground-level decks over poorly draining yards may need $1,000-$4,000 of drainage work first.
San Diego: what basic, standard and premium work costs
Three bands are cut from the same cited range and localized for San Diego 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
$13,900 to $19,500
Entry-level composite boards, low deck, simple shape
Standard
$18,100 to $23,700
Mid-grade capped boards with railing and stairs
Premium
$22,300 to $27,900
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $5,600 – $7,900 | $7,300 – $9,600 | $9,000 – $11,300 |
| 12x12 (144 sq ft) | $6,700 – $9,450 | $8,750 – $11,500 | $10,800 – $13,500 |
| 16x20 (320 sq ft) | $14,900 – $20,800 | $19,400 – $25,300 | $23,800 – $29,800 |
| 20x20 (400 sq ft) | $18,600 – $26,000 | $24,200 – $31,600 | $29,800 – $37,200 |
San Diego against nearby metros and the rest of California
Same job, same size (300 sq ft), priced for the nearest metros. Los Angeles is the priciest of the group at $21,300. Yuma is the cheapest at $15,800.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| San Diego, CAthis page | $13,900 – $27,900 | $20,900 | |
| El Centro, CA80 miles | $13,800 – $27,700 | $20,700 | −1% |
| Los Angeles, CA110 miles | $14,200 – $28,400 | $21,300 | +2% |
| Riverside, CA110 miles | $13,500 – $27,000 | $20,200 | −3% |
| Oxnard, CA165 miles | $13,900 – $28,000 | $20,900 | level |
| Yuma, AZ165 miles | $10,500 – $21,100 | $15,800 | −24% |
| California (statewide) | $14,200 – $28,500 | $21,300 | +2% |
| United States | $12,100 – $24,200 | $18,100 | −14% |
Across 300 US metros, San Diego comes in at #19 from the top. The priciest is Honolulu, HI at $25,200; the cheapest is Brownsville, TX at $13,500 (midpoints, 300 sq ft). Statewide, San Diego is 2% below the California figure.
Other California metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Los Angeles, CA | 6,271,560 jobs | $14,200 – $28,400 | $21,300 | +2% |
| San Francisco, CA | 2,373,920 jobs | $16,000 – $32,000 | $24,000 | +14% |
| Riverside, CA | 1,716,760 jobs | $13,500 – $27,000 | $20,200 | −3% |
| San Jose, CA | 1,134,970 jobs | $14,800 – $29,700 | $22,300 | +6% |
| Sacramento, CA | 1,080,590 jobs | $14,000 – $28,100 | $21,100 | +1% |
| Fresno, CA | 476,890 jobs | $12,800 – $25,700 | $19,300 | −8% |
Cities with a workforce like San Diego's
Big cities and small ones price differently, so here is San Diego against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Denver, CO | 1,609,350 jobs | $12,600 – $25,200 | $18,900 | −10% |
| Tampa, FL | 1,447,120 jobs | $10,900 – $21,900 | $16,400 | −22% |
| Riverside, CA | 1,716,760 jobs | $13,500 – $27,000 | $20,200 | −3% |
| Orlando, FL | 1,411,730 jobs | $10,700 – $21,400 | $16,000 | −24% |
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 $18,100 to $23,700 for San Diego, CA is attached.
Detailed composite deck report for San Diego, CA, $9
The report lays out the composite deck numbers for San Diego, CA line by line, with the local wage and price inputs, permit and timing notes, a quote comparison sheet and the full method. 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 San Diego: your questions
+How much does it cost to build a composite deck in San Diego?
For 300 sq ft, expect $13,900 to $27,900 in the San Diego area. A standard-spec job lands at $18,100 to $23,700. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in San Diego?
About $46.50 to $92.50 per sq ft for materials and labor, plus $55 to $170 for the permit if one is needed. The US range is $40 to $80.
+Is composite deck cheaper in San Diego or El Centro?
El Centro is 80 miles away. The midpoint for 300 sq ft there is $20,700, which is 1% less than San Diego ($20,900). Wage and materials indexes both feed that gap.
+How much of the bill is labor in San Diego?
About 62% at the midpoint, or $13,100 out of $20,900. Materials are 37% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in San Diego?
$14,900 to $29,800. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in San Diego?
Often, but rules are set by your city or county building office, so call before you hire. Budget $55 to $170 for fees in the San Diego area (our national range of $50 to $150 scaled by the local price level).
+Is San Diego expensive for composite deck compared with the rest of California?
San Diego is 2% below the California statewide estimate ($21,300 at the midpoint). We cover 23 metros in California; see the state page to compare them.
+What do carpenters earn in San Diego?
The BLS median is $35.19 an hour in the San Diego area, compared with $29.12 nationally. The 25th to 75th percentile range is $28.16 to $46.12.
+What do basic and premium composite deck work cost in San Diego?
For 300 sq ft, basic work runs $13,900 to $19,500 and premium work $22,300 to $27,900. 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 San Diego?
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 San Diego?
$2,050 to $6,200 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near San Diego
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