Composite deck cost in Iowa City, IA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $10,700 – $21,500
- Per sq ft
- $35.50 – $71.50
- before permit
- Versus US midpoint
- −11%
- US $18,100
- Rank of 300 metros
- #209
- 1 = most expensive
Local price for a composite deck in the Iowa City area: $10,700 to $21,500 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 11% lower than the US figure. Carpenters earn a median of $23.89 an hour in the Iowa City area, 18% below the US median of $29.12.
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Estimated cost for 300 sq ft in Iowa City, IA, standard level
$14,000 to $18,300
About $46.50 to $60.50 per sq ft before permits. Labor is about 58% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $5,850 | $7,650 |
| Labor | $8,050 | $10,500 |
| Permits and fees | $75 | $110 |
| Total | $14,000 | $18,300 |
Cost breakdown for 300 sq ft in Iowa City, IA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $4,500 | $6,750 | $9,000 | 42% |
| Labor | $6,200 | $9,300 | $12,400 | 58% |
| Permits and fees | $45 | $90 | $140 | 1% |
| Total | $10,700 | $16,100 | $21,500 | 100% |
What is behind the Iowa City number
The wage side of the estimate leans on carpenters, who do 80% of the hours on a typical job. Their local median is $23.89 an hour. Add the other trades involved and the blended wage index for Iowa City is 0.86 (US = 1.00), which puts labor at 58% of the total.
Materials are scaled with BEA's regional price parity for goods. Iowa City is at 93.7 against 100 for the US, so a materials line of $7,200 nationally becomes $6,750 here (midpoint, 300 sq ft). Permits follow the all-items index of 91.5: $45 to $140.
Who does the work: Iowa City 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 Iowa City the blend is 0.86.
Carpenters (47-2031), 80% of the weighting: a median of $23.89 an hour, 18% below the US median of $29.12. The middle half of them earn between $21.98 and $29.70 an hour. About 360 work in the metro. That is 38.4 per 10,000 jobs, compared with 43.1 nationally, so the supply of crews looks typical.
For construction laborers (47-2061, weighted 20%) the local median is $23.05 an hour, which is in line with the national $22.66. The middle half of them earn between $21.87 and $28.74 an hour. BLS counts 800 of them working in the area, 85.3 for every 10,000 jobs (US: 70.5), so the local bench is deeper than average.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $1,700 to the midpoint estimate; the 25th percentile takes off about $570. That is a swing of roughly 3.5% to 10.7% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Iowa City has 93,760 jobs in total (BLS, May 2025), ranking 214th 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% | $21.98 | $23.89 | $29.70 | $29.12 | 0.82 | metro |
| Construction laborers (47-2061) | 20% | $21.87 | $23.05 | $28.74 | $22.66 | 1.02 | metro |
| Blended | 100% | 0.86 | |||||
The best months for composite deck in Iowa City
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Iowa City Muni 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 Iowa City 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.
Iowa City gets about 36 inches of precipitation in a normal year. The wettest months are May, June and August (5.3 inches in June). Inside the workable window, March and November are the driest, at 2.2 and 2.2 inches. The station averages about 19 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 | 31 | 15 | 1.0 | Cold |
| Feb | 36 | 19 | 1.2 | Cold |
| Mar | 50 | 30 | 2.2 | Workable |
| Apr | 63 | 40 | 3.8 | Workable |
| May | 73 | 52 | 4.5 | Workable |
| Jun | 83 | 62 | 5.3 | Workable |
| Jul | 86 | 66 | 3.9 | Workable |
| Aug | 84 | 63 | 3.9 | Workable |
| Sep | 78 | 54 | 3.2 | Workable |
| Oct | 64 | 42 | 3.0 | Workable |
| Nov | 49 | 30 | 2.2 | Workable |
| Dec | 36 | 20 | 1.4 | Cold |
Pick a size, pick a tier: composite deck pricing in Iowa City
The cited range is split into basic, standard and premium bands, then scaled to Iowa City. 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
$10,700 to $15,000
Entry-level composite boards, low deck, simple shape
Standard
$14,000 to $18,300
Mid-grade capped boards with railing and stairs
Premium
$17,200 to $21,500
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $4,300 – $6,050 | $5,650 – $7,400 | $6,950 – $8,700 |
| 12x12 (144 sq ft) | $5,200 – $7,250 | $6,750 – $8,850 | $8,300 – $10,400 |
| 16x20 (320 sq ft) | $11,400 – $16,000 | $14,900 – $19,500 | $18,300 – $22,900 |
| 20x20 (400 sq ft) | $14,300 – $20,000 | $18,600 – $24,300 | $22,900 – $28,600 |
What nearby projects cost in Iowa City
Jobs that often go together with composite deck are priced below at their usual sizes, using the same Iowa City wage and price inputs. Compared with national midpoints, paver patio comes out highest (level) and wood deck lowest (−10%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $6,800 – $13,700 | −10% |
| Concrete patio | 300 sq ft | $1,200 – $3,900 | −3% |
| Paver patio | 300 sq ft | $3,000 – $5,450 | level |
| Gutters | 160 linear ft | $1,250 – $4,000 | −4% |
Why two Iowa City quotes can differ
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.
Engineering
Large or complex decks may need a structural engineer at $100-$220 an hour to get a permit.
Extras that change the Iowa City total
Add-ons start from national price ranges and are scaled by 0.90 for Iowa City, which is the average of the area's wage index (0.86) and goods price index (0.94). The estimator above can add them to your total.
| Add-on | Local range |
|---|---|
| Add a deck railing (approx. 0.3 ft per sq ft) | $1,600 – $4,850 |
Is Iowa City cheap or dear? The local comparison
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 $16,100 to $18,000 across Iowa City and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Iowa City, IAthis page | $10,700 – $21,500 | $16,100 | |
| Cedar Rapids, IA40 miles | $11,600 – $23,300 | $17,500 | +8% |
| Davenport, IA60 miles | $12,000 – $24,000 | $18,000 | +12% |
| Dubuque, IA75 miles | $11,700 – $23,500 | $17,600 | +9% |
| Waterloo, IA80 miles | $11,400 – $22,800 | $17,100 | +6% |
| Des Moines, IA110 miles | $11,900 – $23,900 | $17,900 | +11% |
| Iowa (statewide) | $11,500 – $23,100 | $17,300 | +7% |
| United States | $12,100 – $24,200 | $18,100 | +12% |
Out of the 300 metros we cover, Iowa City ranks #209 for the cost of this job (#1 is the most expensive). Statewide, Iowa City is 7% below the Iowa figure.
Elsewhere in Iowa
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Des Moines, IA | 404,130 jobs | $11,900 – $23,900 | $17,900 | +11% |
| Davenport, IA | 180,450 jobs | $12,000 – $24,000 | $18,000 | +12% |
| Cedar Rapids, IA | 139,260 jobs | $11,600 – $23,300 | $17,500 | +8% |
| Waterloo, IA | 84,260 jobs | $11,400 – $22,800 | $17,100 | +6% |
| Sioux City, IA | 75,010 jobs | $10,900 – $21,800 | $16,400 | +2% |
| Dubuque, IA | 58,470 jobs | $11,700 – $23,500 | $17,600 | +9% |
Metros of a similar size
Big cities and small ones price differently, so here is Iowa City against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Billings, MT | 93,800 jobs | $11,800 – $23,600 | $17,700 | +10% |
| Oshkosh, WI | 93,750 jobs | $14,100 – $28,300 | $21,200 | +32% |
| Barnstable, MA | 94,110 jobs | $13,300 – $26,600 | $19,900 | +23% |
| Bremerton, WA | 93,740 jobs | $12,900 – $25,900 | $19,400 | +21% |
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 $14,000 to $18,300 for Iowa City, IA is attached.
Take this estimate with you: PDF report, $9
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Composite deck in Iowa City: your questions
+How much does it cost to build a composite deck in Iowa City?
For 300 sq ft, expect $10,700 to $21,500 in the Iowa City area. A standard-spec job lands at $14,000 to $18,300. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in Iowa City?
About $35.50 to $71.50 per sq ft for materials and labor, plus $45 to $140 for the permit if one is needed. The US range is $40 to $80.
+Is composite deck cheaper in Iowa City or Cedar Rapids?
Cedar Rapids is 40 miles away. The midpoint for 300 sq ft there is $17,500, which is 8% more than Iowa City ($16,100). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Iowa City?
About 58% at the midpoint, or $9,300 out of $16,100. Materials are 42% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in Iowa City?
$11,400 to $22,900. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in Iowa City?
Often, but rules are set by your city or county building office, so call before you hire. Budget $45 to $140 for fees in the Iowa City area (our national range of $50 to $150 scaled by the local price level).
+Is Iowa City expensive for composite deck compared with the rest of Iowa?
Iowa City is 7% below the Iowa statewide estimate ($17,300 at the midpoint). We cover 7 metros in Iowa; see the state page to compare them.
+What do carpenters earn in Iowa City?
The BLS median is $23.89 an hour in the Iowa City area, compared with $29.12 nationally. The 25th to 75th percentile range is $21.98 to $29.70.
+What do basic and premium composite deck work cost in Iowa City?
For 300 sq ft, basic work runs $10,700 to $15,000 and premium work $17,200 to $21,500. 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 Iowa City?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through November. March 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 Iowa City?
$1,600 to $4,850 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near Iowa City
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