Composite deck cost in New Haven, CT
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $12,800 – $25,700
- Per sq ft
- $42.50 – $85
- before permit
- Versus US midpoint
- +6%
- US $18,100
- Rank of 300 metros
- #48
- 1 = most expensive
Local price for a composite deck in the New Haven area: $12,800 to $25,700 for 300 sq ft. The low end is a basic job on easy ground; the high end is a premium spec with harder access. The midpoint runs 6% higher than the US figure. Carpenters earn a median of $31.61 an hour in the New Haven area, 9% above the US median of $29.12.
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Estimated cost for 300 sq ft in New Haven, CT, standard level
$16,700 to $21,800
About $55.50 to $72.50 per sq ft before permits. Labor is about 63% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $6,050 | $7,950 |
| Labor | $10,500 | $13,800 |
| Permits and fees | $85 | $130 |
| Total | $16,700 | $21,800 |
Cost breakdown for 300 sq ft in New Haven, CT
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $4,650 | $7,000 | $9,350 | 36% |
| Labor | $8,100 | $12,100 | $16,200 | 63% |
| Permits and fees | $50 | $100 | $160 | 1% |
| Total | $12,800 | $19,300 | $25,700 | 100% |
Why New Haven 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, New Haven wages are 1.12 times the national level. Labor makes up about 63% of the midpoint estimate (60% at national prices).
Materials are scaled with BEA's regional price parity for goods. New Haven is at 97.3 against 100 for the US, so a materials line of $7,200 nationally becomes $7,000 here (midpoint, 300 sq ft). Permits follow the all-items index of 104.6: $50 to $160.
What nearby projects cost in New Haven
Jobs that often go together with composite deck are priced below at their usual sizes, using the same New Haven wage and price inputs. Compared with national midpoints, paver patio comes out highest (+13%) and wood deck lowest (+4%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $7,850 – $15,800 | +4% |
| Concrete patio | 300 sq ft | $1,300 – $4,400 | +8% |
| Paver patio | 300 sq ft | $3,400 – $6,200 | +13% |
| Gutters | 160 linear ft | $1,350 – $4,350 | +5% |
Who does the work: New Haven trade wages
The labor line is built from BLS wage data, one trade at a time. This job draws on 2 trades. We compare each trade's local median with the US median, weight the ratios by how much of the job each trade does, and apply the blend to the national labor cost. For New Haven the blend is 1.12.
Carpenters (47-2031), 80% of the weighting: a median of $31.61 an hour, 9% above the US median of $29.12. The middle half of them earn between $28.64 and $40.18 an hour. About 730 work in the metro. That is 25.9 per 10,000 jobs, compared with 43.1 nationally, so expect fewer local crews to bid.
For construction laborers (47-2061, weighted 20%) the local median is $29.02 an hour, which is 28% above the national $22.66. The middle half of them earn between $23.36 and $35.51 an hour. BLS counts 1,220 of them working in the area, 43.4 for every 10,000 jobs (US: 70.5), so the local bench is thinner than average.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $2,550 to the midpoint estimate; the 25th percentile takes off about $880. That is a swing of roughly 4.6% to 13.2% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
New Haven has 281,410 jobs in total (BLS, May 2025), ranking 91st by size among the 300 metros on this site.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 80% | $28.64 | $31.61 | $40.18 | $29.12 | 1.09 | metro |
| Construction laborers (47-2061) | 20% | $23.36 | $29.02 | $35.51 | $22.66 | 1.28 | metro |
| Blended | 100% | 1.12 | |||||
Add-ons priced for New Haven
Add-ons start from national price ranges and are scaled by 1.05 for New Haven, which is the average of the area's wage index (1.12) and goods price index (0.97). The estimator above can add them to your total.
| Add-on | Local range |
|---|---|
| Add a deck railing (approx. 0.3 ft per sq ft) | $1,900 – $5,650 |
Pick a size, pick a tier: composite deck pricing in New Haven
The cited range is split into basic, standard and premium bands, then scaled to New Haven. Bands overlap, because plenty of standard jobs cost as much as a light premium one. Sizes run from 10x12 (120 sq ft) to 20x20 (400 sq ft).
Basic
$12,800 to $18,000
Entry-level composite boards, low deck, simple shape
Standard
$16,700 to $21,800
Mid-grade capped boards with railing and stairs
Premium
$20,500 to $25,700
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $5,150 – $7,250 | $6,700 – $8,800 | $8,300 – $10,400 |
| 12x12 (144 sq ft) | $6,200 – $8,650 | $8,050 – $10,500 | $9,900 – $12,400 |
| 16x20 (320 sq ft) | $13,700 – $19,200 | $17,800 – $23,300 | $21,900 – $27,400 |
| 20x20 (400 sq ft) | $17,100 – $23,900 | $22,200 – $29,100 | $27,400 – $34,200 |
Why two New Haven quotes can differ
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.
New Haven against nearby metros and the rest of Connecticut
Contractors rarely work more than an hour or two from home, so the neighboring metros set a rough ceiling and floor for your quotes. Midpoints for 300 sq ft range from $18,600 to $20,700 across New Haven and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| New Haven, CTthis page | $12,800 – $25,700 | $19,300 | |
| Waterbury, CT20 miles | $12,400 – $24,800 | $18,600 | −3% |
| Bridgeport, CT30 miles | $12,500 – $25,100 | $18,800 | −2% |
| Hartford, CT30 miles | $12,600 – $25,300 | $18,900 | −2% |
| Norwich, CT40 miles | $12,400 – $24,900 | $18,700 | −3% |
| Springfield, MA60 miles | $13,800 – $27,700 | $20,700 | +8% |
| Connecticut (statewide) | $12,600 – $25,200 | $18,900 | −2% |
| United States | $12,100 – $24,200 | $18,100 | −6% |
Out of the 300 metros we cover, New Haven ranks #48 for the cost of this job (#1 is the most expensive). Statewide, New Haven is 2% above the Connecticut figure.
Elsewhere in Connecticut
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Hartford, CT | 599,770 jobs | $12,600 – $25,300 | $18,900 | −2% |
| Bridgeport, CT | 404,180 jobs | $12,500 – $25,100 | $18,800 | −2% |
| Waterbury, CT | 160,710 jobs | $12,400 – $24,800 | $18,600 | −3% |
| Norwich, CT | 126,450 jobs | $12,400 – $24,900 | $18,700 | −3% |
Metros of a similar size
Big cities and small ones price differently, so here is New Haven against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Lexington, KY | 286,910 jobs | $11,000 – $22,100 | $16,600 | −14% |
| Reno, NV | 275,680 jobs | $12,200 – $24,400 | $18,300 | −5% |
| Portland, ME | 288,480 jobs | $12,300 – $24,700 | $18,500 | −4% |
| Fayetteville, AR | 275,180 jobs | $10,400 – $20,900 | $15,600 | −19% |
The best months for composite deck in New Haven
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, New Haven Tweed Ap (5 miles from the city center). They are 30-year averages, so any one year can run hotter, colder or wetter.
For exterior installation, the comfortable months in New Haven are March through November: 9 of 12. Outside them, January, February and December have an average daytime high under 45°F.
In January, February and December the average high stays below 45°F. Sealants, adhesives and some materials, such as vinyl, are harder to install well in the cold, and short daylight cuts the working day.
New Haven gets about 42 inches of precipitation in a normal year. The wettest months are April, September and October (4.2 inches in April). Inside the workable window, July and November are the driest, at 3.4 and 3.1 inches. The station averages about 6 days a year at 90°F or above.
We do not adjust the estimate by month, because we have no reliable published data on seasonal pricing. It is still worth asking contractors whether an off-peak start date changes their bid.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 38 | 23 | 2.7 | Cold |
| Feb | 40 | 24 | 2.8 | Cold |
| Mar | 47 | 30 | 3.7 | Workable |
| Apr | 58 | 39 | 4.2 | Workable |
| May | 68 | 49 | 3.5 | Workable |
| Jun | 76 | 59 | 3.5 | Workable |
| Jul | 82 | 66 | 3.4 | Workable |
| Aug | 81 | 65 | 3.5 | Workable |
| Sep | 75 | 57 | 4.0 | Workable |
| Oct | 64 | 46 | 3.8 | Workable |
| Nov | 53 | 36 | 3.1 | Workable |
| Dec | 44 | 29 | 3.5 | Cold |
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 $16,700 to $21,800 for New Haven, CT is attached.
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Composite deck in New Haven: your questions
+How much does it cost to build a composite deck in New Haven?
For 300 sq ft, expect $12,800 to $25,700 in the New Haven area. A standard-spec job lands at $16,700 to $21,800. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in New Haven?
About $42.50 to $85 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 New Haven or Waterbury?
Waterbury is 20 miles away. The midpoint for 300 sq ft there is $18,600, which is 3% less than New Haven ($19,300). Wage and materials indexes both feed that gap.
+How much of the bill is labor in New Haven?
About 63% at the midpoint, or $12,100 out of $19,300. Materials are 36% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in New Haven?
$13,700 to $27,400. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in New Haven?
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 New Haven area (our national range of $50 to $150 scaled by the local price level).
+Is New Haven expensive for composite deck compared with the rest of Connecticut?
New Haven is 2% above the Connecticut statewide estimate ($18,900 at the midpoint). We cover 5 metros in Connecticut; see the state page to compare them.
+What do carpenters earn in New Haven?
The BLS median is $31.61 an hour in the New Haven area, compared with $29.12 nationally. The 25th to 75th percentile range is $28.64 to $40.18.
+What do basic and premium composite deck work cost in New Haven?
For 300 sq ft, basic work runs $12,800 to $18,000 and premium work $20,500 to $25,700. Basic means: entry-level composite boards, low deck, simple shape. Premium means: premium capped or PVC boards, multi-level, hidden fasteners.
+When is the best time to build a composite deck in New Haven?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through November. July and November are typically the driest of those months. Local contractors' schedules matter as much as the weather, so book early for the busy months.
+What does "add a deck railing" add in New Haven?
$1,900 to $5,650 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near New Haven
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