Composite deck cost in Sioux City, IA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $10,900 – $21,800
- Per sq ft
- $36 – $72.50
- before permit
- Versus US midpoint
- −10%
- US $18,100
- Rank of 300 metros
- #189
- 1 = most expensive
A composite deck in Sioux City, IA usually costs $10,900 to $21,800 for 300 sq ft. That works out to about $36 to $72.50 per sq ft before permits. Compared with the national midpoint that is $1,750 less. Carpenters earn a median of $24.57 an hour in the Sioux City area, 16% below 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 Sioux City, IA, standard level
$14,200 to $18,600
About $47 to $61.50 per sq ft before permits. Labor is about 58% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $5,850 | $7,650 |
| Labor | $8,250 | $10,800 |
| Permits and fees | $70 | $100 |
| Total | $14,200 | $18,600 |
Cost breakdown for 300 sq ft in Sioux City, IA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $4,500 | $6,750 | $9,050 | 41% |
| Labor | $6,350 | $9,500 | $12,700 | 58% |
| Permits and fees | $45 | $85 | $130 | 1% |
| Total | $10,900 | $16,400 | $21,800 | 100% |
Where the Sioux City price comes from
We price the labor side from BLS wage data for 2 trades: carpenters at 80%, construction laborers at 20%. Weighted together, Sioux City wages are 0.88 times the national level. Labor makes up about 58% of the midpoint estimate (60% at national prices).
Materials are scaled with BEA's regional price parity for goods. Sioux City is at 94.0 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 86.5: $45 to $130.
Extras that change the Sioux City total
Add-ons start from national price ranges and are scaled by 0.91 for Sioux City, which is the average of the area's wage index (0.88) 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) | $1,650 – $4,900 |
Related projects, priced for Sioux City
Jobs that often go together with composite deck are priced below at their usual sizes, using the same Sioux City wage and price inputs. Compared with national midpoints, paver patio comes out highest (level) and wood deck lowest (−9%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $6,900 – $13,800 | −9% |
| Concrete patio | 300 sq ft | $1,200 – $3,850 | −4% |
| Paver patio | 300 sq ft | $3,000 – $5,450 | level |
| Gutters | 160 linear ft | $1,250 – $4,000 | −4% |
What local crews earn in Sioux City
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 Sioux City the blend is 0.88.
Carpenters (47-2031), 80% of the weighting: a median of $24.57 an hour, 16% below the US median of $29.12. The middle half of them earn between $22.02 and $29.52 an hour. About 350 work in the metro. That is 46.7 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 $23.38 an hour, which is 3% above the national $22.66. The middle half of them earn between $21.71 and $28.72 an hour. BLS counts 560 of them working in the area, 74.7 for every 10,000 jobs (US: 70.5), so the local bench is about average.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $1,450 to the midpoint estimate; the 25th percentile takes off about $760. That is a swing of roughly 4.6% to 9.0% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Sioux City has 75,010 jobs in total (BLS, May 2025), ranking 247th 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% | $22.02 | $24.57 | $29.52 | $29.12 | 0.84 | metro |
| Construction laborers (47-2061) | 20% | $21.71 | $23.38 | $28.72 | $22.66 | 1.03 | metro |
| Blended | 100% | 0.88 | |||||
How Sioux City compares
Same job, same size (300 sq ft), priced for the nearest metros. Des Moines is the priciest of the group at $17,900. Lincoln is the cheapest at $16,100.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Sioux City, IAthis page | $10,900 – $21,800 | $16,400 | |
| Sioux Falls, SD75 miles | $10,800 – $21,600 | $16,200 | −1% |
| Omaha, NE85 miles | $11,100 – $22,200 | $16,600 | +1% |
| Lincoln, NE120 miles | $10,700 – $21,500 | $16,100 | −2% |
| Des Moines, IA145 miles | $11,900 – $23,900 | $17,900 | +9% |
| Waterloo, IA195 miles | $11,400 – $22,800 | $17,100 | +4% |
| Iowa (statewide) | $11,500 – $23,100 | $17,300 | +6% |
| United States | $12,100 – $24,200 | $18,100 | +11% |
Out of the 300 metros we cover, Sioux City ranks #189 for the cost of this job (#1 is the most expensive). Statewide, Sioux City is 5% 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 | +9% |
| Davenport, IA | 180,450 jobs | $12,000 – $24,000 | $18,000 | +10% |
| Cedar Rapids, IA | 139,260 jobs | $11,600 – $23,300 | $17,500 | +7% |
| Iowa City, IA | 93,760 jobs | $10,700 – $21,500 | $16,100 | −2% |
| Waterloo, IA | 84,260 jobs | $11,400 – $22,800 | $17,100 | +4% |
| Dubuque, IA | 58,470 jobs | $11,700 – $23,500 | $17,600 | +8% |
Metros of a similar size
Big cities and small ones price differently, so here is Sioux City against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Abilene, TX | 75,070 jobs | $9,800 – $19,700 | $14,700 | −10% |
| Blacksburg, VA | 74,070 jobs | $10,500 – $21,000 | $15,800 | −4% |
| Kenosha, WI | 75,450 jobs | $12,400 – $24,800 | $18,600 | +14% |
| Rapid City, SD | 73,820 jobs | $10,600 – $21,300 | $16,000 | −2% |
Why two Sioux City quotes can differ
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.
Pick a size, pick a tier: composite deck pricing in Sioux City
The cited range is split into basic, standard and premium bands, then scaled to Sioux 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
$10,900 to $15,300
Entry-level composite boards, low deck, simple shape
Standard
$14,200 to $18,600
Mid-grade capped boards with railing and stairs
Premium
$17,500 to $21,800
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $4,400 – $6,150 | $5,700 – $7,500 | $7,050 – $8,800 |
| 12x12 (144 sq ft) | $5,250 – $7,350 | $6,850 – $8,950 | $8,450 – $10,600 |
| 16x20 (320 sq ft) | $11,600 – $16,300 | $15,100 – $19,800 | $18,600 – $23,300 |
| 20x20 (400 sq ft) | $14,500 – $20,300 | $18,900 – $24,700 | $23,300 – $29,100 |
Sioux City weather and the composite deck calendar
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Sioux City Gateway 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 Sioux 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.
Sioux City gets about 29 inches of precipitation in a normal year, including roughly 36 inches of snow. The wettest months are May, June and August (4.3 inches in June). Inside the workable window, March and November are the driest, at 1.8 and 1.3 inches. The station averages about 25 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 | 30 | 10 | 0.7 | Cold |
| Feb | 34 | 15 | 0.9 | Cold |
| Mar | 48 | 26 | 1.8 | Workable |
| Apr | 61 | 37 | 3.1 | Workable |
| May | 72 | 49 | 3.9 | Workable |
| Jun | 82 | 59 | 4.3 | Workable |
| Jul | 85 | 63 | 3.4 | Workable |
| Aug | 83 | 61 | 3.9 | Workable |
| Sep | 77 | 51 | 2.8 | Workable |
| Oct | 63 | 38 | 2.2 | Workable |
| Nov | 47 | 25 | 1.3 | Workable |
| Dec | 33 | 15 | 1.0 | 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 $14,200 to $18,600 for Sioux City, IA is attached.
A detailed PDF report of this estimate, $9
The report lays out the composite deck numbers for Sioux City, IA 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 Sioux City: your questions
+How much does it cost to build a composite deck in Sioux City?
For 300 sq ft, expect $10,900 to $21,800 in the Sioux City area. A standard-spec job lands at $14,200 to $18,600. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in Sioux City?
About $36 to $72.50 per sq ft for materials and labor, plus $45 to $130 for the permit if one is needed. The US range is $40 to $80.
+Is composite deck cheaper in Sioux City or Sioux Falls?
Sioux Falls is 75 miles away. The midpoint for 300 sq ft there is $16,200, which is 1% less than Sioux City ($16,400). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Sioux City?
About 58% at the midpoint, or $9,500 out of $16,400. Materials are 41% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in Sioux City?
$11,600 to $23,300. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in Sioux City?
Often, but rules are set by your city or county building office, so call before you hire. Budget $45 to $130 for fees in the Sioux City area (our national range of $50 to $150 scaled by the local price level).
+Is Sioux City expensive for composite deck compared with the rest of Iowa?
Sioux City is 5% 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 Sioux City?
The BLS median is $24.57 an hour in the Sioux City area, compared with $29.12 nationally. The 25th to 75th percentile range is $22.02 to $29.52.
+What do basic and premium composite deck work cost in Sioux City?
For 300 sq ft, basic work runs $10,900 to $15,300 and premium work $17,500 to $21,800. 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 Sioux 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 Sioux City?
$1,650 to $4,900 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near Sioux 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