Composite deck cost in Trenton, NJ
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $13,300 – $26,600
- Per sq ft
- $44 – $88
- before permit
- Versus US midpoint
- +10%
- US $18,100
- Rank of 300 metros
- #40
- 1 = most expensive
Local price for a composite deck in the Trenton area: $13,300 to $26,600 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 10% higher than the US figure. Carpenters earn a median of $31.58 an hour in the Trenton area, 8% above the US median of $29.12.
Estimate your composite deck cost
Pick a size, a quality level and where you live. Prices update as you type.
Estimated cost for 300 sq ft in Trenton, NJ, standard level
$17,300 to $22,600
About $57.50 to $75 per sq ft before permits. Labor is about 63% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $6,250 | $8,150 |
| Labor | $11,000 | $14,400 |
| Permits and fees | $85 | $120 |
| Total | $17,300 | $22,600 |
Cost breakdown for 300 sq ft in Trenton, NJ
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $4,800 | $7,200 | $9,600 | 36% |
| Labor | $8,450 | $12,700 | $16,900 | 63% |
| Permits and fees | $50 | $100 | $150 | 1% |
| Total | $13,300 | $20,000 | $26,600 | 100% |
Where the Trenton price comes from
Labor is 63% of the midpoint bill here, against 60% nationally. The mix of trades behind this job is carpenters (80%), construction laborers (20%). We weight each trade's local median wage by that share and compare it with the national median. In Trenton the blended ratio comes out at 1.17.
Materials are scaled with BEA's regional price parity for goods. Trenton is at 99.8 against 100 for the US, so a materials line of $7,200 nationally becomes $7,200 here (midpoint, 300 sq ft). Permits follow the all-items index of 103.2: $50 to $150.
Is Trenton cheap or dear? The local comparison
Of the five closest metros, 4 are cheaper than Trenton. Reading is the lowest at about $17,400 (midpoint, 300 sq ft), 65 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Trenton, NJthis page | $13,300 – $26,600 | $20,000 | |
| Philadelphia, PA40 miles | $12,300 – $24,600 | $18,400 | −8% |
| Allentown, PA50 miles | $12,000 – $24,100 | $18,100 | −9% |
| New York, NY55 miles | $14,300 – $28,600 | $21,500 | +8% |
| Reading, PA65 miles | $11,600 – $23,200 | $17,400 | −13% |
| Atlantic City, NJ70 miles | $12,300 – $24,700 | $18,500 | −7% |
| New Jersey (statewide) | $13,200 – $26,500 | $19,900 | level |
| United States | $12,100 – $24,200 | $18,100 | −9% |
Out of the 300 metros we cover, Trenton ranks #40 for the cost of this job (#1 is the most expensive). Statewide, Trenton is 0% above the New Jersey figure.
Elsewhere in New Jersey
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Atlantic City, NJ | 168,700 jobs | $12,300 – $24,700 | $18,500 | −7% |
| Vineland, NJ | 62,300 jobs | $13,400 – $26,900 | $20,200 | +1% |
Metros of a similar size
Big cities and small ones price differently, so here is Trenton against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Palm Bay, FL | 245,170 jobs | $10,600 – $21,200 | $15,900 | −20% |
| Augusta, GA | 231,930 jobs | $11,500 – $23,000 | $17,200 | −14% |
| Lancaster, PA | 252,230 jobs | $11,700 – $23,400 | $17,500 | −12% |
| Fort Wayne, IN | 225,520 jobs | $11,800 – $23,600 | $17,700 | −11% |
The best months for composite deck in Trenton
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Trenton Mercer Co 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 Trenton 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.
Trenton gets about 46 inches of precipitation in a normal year, including roughly 27 inches of snow. The wettest months are June, July and August (4.4 inches in July). Inside the workable window, April and November are the driest, at 3.6 and 3.2 inches. The station averages about 22 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 | 40 | 24 | 3.3 | Cold |
| Feb | 43 | 26 | 2.6 | Cold |
| Mar | 51 | 33 | 4.0 | Workable |
| Apr | 63 | 42 | 3.6 | Workable |
| May | 72 | 52 | 4.0 | Workable |
| Jun | 81 | 61 | 4.3 | Workable |
| Jul | 86 | 67 | 4.4 | Workable |
| Aug | 84 | 65 | 4.2 | Workable |
| Sep | 77 | 58 | 4.0 | Workable |
| Oct | 66 | 46 | 3.8 | Workable |
| Nov | 55 | 36 | 3.2 | Workable |
| Dec | 44 | 29 | 4.0 | Cold |
Cost by quality level and size in Trenton
The cited range is split into basic, standard and premium bands, then scaled to Trenton. 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
$13,300 to $18,600
Entry-level composite boards, low deck, simple shape
Standard
$17,300 to $22,600
Mid-grade capped boards with railing and stairs
Premium
$21,300 to $26,600
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $5,350 – $7,500 | $6,950 – $9,100 | $8,600 – $10,700 |
| 12x12 (144 sq ft) | $6,400 – $9,000 | $8,350 – $10,900 | $10,300 – $12,900 |
| 16x20 (320 sq ft) | $14,200 – $19,900 | $18,400 – $24,100 | $22,700 – $28,400 |
| 20x20 (400 sq ft) | $17,700 – $24,800 | $23,000 – $30,100 | $28,300 – $35,400 |
Composite deck: what moves the price in Trenton
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).
Labor
Labor for composite is $24-$48 per sq ft, higher than wood because the boards need extra parts and more careful assembly.
Who does the work: Trenton 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 Trenton the blend is 1.17.
Carpenters (47-2031), 80% of the weighting: a median of $31.58 an hour, 8% above the US median of $29.12. The middle half of them earn between $25.60 and $51.38 an hour. About 610 work in the metro. That is 25.4 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 $34.58 an hour, which is 53% above the national $22.66. The middle half of them earn between $23.43 and $51.14 an hour. BLS counts 960 of them working in the area, 40.0 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 $5,850 to the midpoint estimate; the 25th percentile takes off about $1,750. That is a swing of roughly 8.9% to 29.4% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Trenton-Princeton has 240,190 jobs in total (BLS, May 2025), ranking 105th 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% | $25.60 | $31.58 | $51.38 | $29.12 | 1.08 | metro |
| Construction laborers (47-2061) | 20% | $23.43 | $34.58 | $51.14 | $22.66 | 1.53 | metro |
| Blended | 100% | 1.17 | |||||
Optional extras in Trenton
Add-ons start from national price ranges and are scaled by 1.09 for Trenton, which is the average of the area's wage index (1.17) and goods price index (1.00). The estimator above can add them to your total.
| Add-on | Local range |
|---|---|
| Add a deck railing (approx. 0.3 ft per sq ft) | $1,950 – $5,850 |
Planning more than one job in Trenton?
Jobs that often go together with composite deck are priced below at their usual sizes, using the same Trenton wage and price inputs. Compared with national midpoints, paver patio comes out highest (+21%) and wood deck lowest (+7%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $8,100 – $16,300 | +7% |
| Concrete patio | 300 sq ft | $1,400 – $4,700 | +16% |
| Paver patio | 300 sq ft | $3,600 – $6,600 | +21% |
| Gutters | 160 linear ft | $1,600 – $4,950 | +19% |
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 $17,300 to $22,600 for Trenton, NJ is attached.
A detailed PDF report of this estimate, $9
Multi-page report for Trenton, NJ: 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 Trenton: your questions
+How much does it cost to build a composite deck in Trenton?
For 300 sq ft, expect $13,300 to $26,600 in the Trenton area. A standard-spec job lands at $17,300 to $22,600. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in Trenton?
About $44 to $88 per sq ft for materials and labor, plus $50 to $150 for the permit if one is needed. The US range is $40 to $80.
+Is composite deck cheaper in Trenton or Philadelphia?
Philadelphia is 40 miles away. The midpoint for 300 sq ft there is $18,400, which is 8% less than Trenton ($20,000). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Trenton?
About 63% at the midpoint, or $12,700 out of $20,000. Materials are 36% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in Trenton?
$14,200 to $28,400. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in Trenton?
Often, but rules are set by your city or county building office, so call before you hire. Budget $50 to $150 for fees in the Trenton area (our national range of $50 to $150 scaled by the local price level).
+Is Trenton expensive for composite deck compared with the rest of New Jersey?
Trenton is 0% above the New Jersey statewide estimate ($19,900 at the midpoint). We cover 3 metros in New Jersey; see the state page to compare them.
+What do carpenters earn in Trenton?
The BLS median is $31.58 an hour in the Trenton area, compared with $29.12 nationally. The 25th to 75th percentile range is $25.60 to $51.38.
+What do basic and premium composite deck work cost in Trenton?
For 300 sq ft, basic work runs $13,300 to $18,600 and premium work $21,300 to $26,600. 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 Trenton?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through November. April 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 Trenton?
$1,950 to $5,850 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near Trenton
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