Composite deck cost in St. George, UT
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $10,500 – $21,100
- Per sq ft
- $35 – $70
- before permit
- Versus US midpoint
- −12%
- US $18,100
- Rank of 300 metros
- #238
- 1 = most expensive
A composite deck in St. George, UT usually costs $10,500 to $21,100 for 300 sq ft. That works out to about $35 to $70 per sq ft before permits. Compared with the national midpoint that is $2,250 less. Carpenters earn a median of $22.63 an hour in the St. George area, 22% below the US median of $29.12.
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Estimated cost for 300 sq ft in St. George, UT, standard level
$13,700 to $18,000
About $45.50 to $59.50 per sq ft before permits. Labor is about 56% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $6,000 | $7,850 |
| Labor | $7,650 | $10,000 |
| Permits and fees | $80 | $120 |
| Total | $13,700 | $18,000 |
Cost breakdown for 300 sq ft in St. George, UT
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $4,650 | $6,950 | $9,250 | 44% |
| Labor | $5,850 | $8,800 | $11,700 | 56% |
| Permits and fees | $50 | $95 | $150 | 1% |
| Total | $10,500 | $15,800 | $21,100 | 100% |
What is behind the St. George number
Labor is 56% 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 St. George the blended ratio comes out at 0.82.
Materials are scaled with BEA's regional price parity for goods. St. George is at 96.4 against 100 for the US, so a materials line of $7,200 nationally becomes $6,950 here (midpoint, 300 sq ft). Permits follow the all-items index of 97.3: $50 to $150.
Optional extras in St. George
Add-ons start from national price ranges and are scaled by 0.89 for St. George, which is the average of the area's wage index (0.82) and goods price index (0.96). 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 – $4,800 |
St. George against nearby metros and the rest of Utah
Same job, same size (300 sq ft), priced for the nearest metros. Las Vegas is the priciest of the group at $18,100. Lake Havasu City is the cheapest at $15,700.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| St. George, UTthis page | $10,500 – $21,100 | $15,800 | |
| Lake Havasu City, AZ110 miles | $10,500 – $21,000 | $15,700 | −1% |
| Las Vegas, NV110 miles | $12,100 – $24,200 | $18,100 | +14% |
| Flagstaff, AZ135 miles | $11,400 – $22,900 | $17,100 | +8% |
| Prescott Valley, AZ190 miles | $11,500 – $23,000 | $17,200 | +9% |
| Provo, UT190 miles | $11,200 – $22,400 | $16,800 | +6% |
| Utah (statewide) | $11,100 – $22,200 | $16,600 | +5% |
| United States | $12,100 – $24,200 | $18,100 | +14% |
Out of the 300 metros we cover, St. George ranks #238 for the cost of this job (#1 is the most expensive). Statewide, St. George is 5% below the Utah figure.
Elsewhere in Utah
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Salt Lake City, UT | 826,210 jobs | $11,800 – $23,700 | $17,800 | +12% |
| Provo, UT | 304,660 jobs | $11,200 – $22,400 | $16,800 | +6% |
| Ogden, UT | 271,370 jobs | $10,700 – $21,400 | $16,100 | +1% |
| Logan, UT | 66,800 jobs | $10,800 – $21,700 | $16,200 | +2% |
Metros of a similar size
Big cities and small ones price differently, so here is St. George against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Panama City, FL | 90,610 jobs | $10,700 – $21,500 | $16,100 | +2% |
| Medford, OR | 89,060 jobs | $12,100 – $24,300 | $18,200 | +15% |
| Bellingham, WA | 91,390 jobs | $13,800 – $27,700 | $20,800 | +31% |
| Florence, SC | 89,060 jobs | $10,700 – $21,500 | $16,100 | +2% |
Related projects, priced for St. George
Jobs that often go together with composite deck are priced below at their usual sizes, using the same St. George wage and price inputs. Compared with national midpoints, paver patio comes out highest (−6%) 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 – $13,600 | −10% |
| Concrete patio | 300 sq ft | $1,150 – $3,700 | −7% |
| Paver patio | 300 sq ft | $2,850 – $5,150 | −6% |
| Gutters | 160 linear ft | $1,200 – $3,900 | −7% |
Why two St. George 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.
St. George 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, St George (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 St. George are October through May: 8 of 12. Outside them, June, July, August and September have an average daytime high of 90°F or more.
St. George gets about 9 inches of precipitation in a normal year, including roughly 1 inches of snow. The wettest months are January, February and August (1.4 inches in February). Inside the workable window, April and May are the driest, at 0.7 and 0.3 inches. The station averages about 128 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 | 54 | 28 | 1.2 | Workable |
| Feb | 59 | 32 | 1.4 | Workable |
| Mar | 68 | 39 | 1.0 | Workable |
| Apr | 75 | 46 | 0.7 | Workable |
| May | 85 | 56 | 0.3 | Workable |
| Jun | 96 | 65 | 0.2 | Hot |
| Jul | 102 | 72 | 0.5 | Hot |
| Aug | 100 | 70 | 1.1 | Hot |
| Sep | 92 | 61 | 0.7 | Hot |
| Oct | 79 | 47 | 0.8 | Workable |
| Nov | 64 | 35 | 0.7 | Workable |
| Dec | 53 | 28 | 0.9 | Workable |
St. George: what basic, standard and premium work costs
The cited range is split into basic, standard and premium bands, then scaled to St. George. 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
$10,500 to $14,800
Entry-level composite boards, low deck, simple shape
Standard
$13,700 to $18,000
Mid-grade capped boards with railing and stairs
Premium
$16,900 to $21,100
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $4,250 – $5,950 | $5,550 – $7,250 | $6,850 – $8,550 |
| 12x12 (144 sq ft) | $5,100 – $7,150 | $6,650 – $8,700 | $8,150 – $10,200 |
| 16x20 (320 sq ft) | $11,200 – $15,800 | $14,600 – $19,200 | $18,000 – $22,500 |
| 20x20 (400 sq ft) | $14,100 – $19,700 | $18,300 – $23,900 | $22,500 – $28,100 |
What local crews earn in St. George
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 St. George the blend is 0.82.
Carpenters (47-2031), 80% of the weighting: a median of $22.63 an hour, 22% below the US median of $29.12. The middle half of them earn between $19.45 and $28.36 an hour. About 1,110 work in the metro. That is 122.7 per 10,000 jobs, compared with 43.1 nationally, which suggests plenty of local crews to bid.
For construction laborers (47-2061, weighted 20%) the local median is $21.96 an hour, which is 3% below the national $22.66. The middle half of them earn between $18.37 and $23.78 an hour. BLS counts 1,500 of them working in the area, 165.7 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 $940. That is a swing of roughly 6.0% to 10.7% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
St. George has 90,500 jobs in total (BLS, May 2025), ranking 219th 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% | $19.45 | $22.63 | $28.36 | $29.12 | 0.78 | metro |
| Construction laborers (47-2061) | 20% | $18.37 | $21.96 | $23.78 | $22.66 | 0.97 | metro |
| Blended | 100% | 0.82 | |||||
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 $13,700 to $18,000 for St. George, UT is attached.
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Composite deck in St. George: your questions
+How much does it cost to build a composite deck in St. George?
For 300 sq ft, expect $10,500 to $21,100 in the St. George area. A standard-spec job lands at $13,700 to $18,000. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in St. George?
About $35 to $70 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 St. George or Lake Havasu City?
Lake Havasu City is 110 miles away. The midpoint for 300 sq ft there is $15,700, which is 1% less than St. George ($15,800). Wage and materials indexes both feed that gap.
+How much of the bill is labor in St. George?
About 56% at the midpoint, or $8,800 out of $15,800. Materials are 44% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in St. George?
$11,200 to $22,500. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in St. George?
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 St. George area (our national range of $50 to $150 scaled by the local price level).
+Is St. George expensive for composite deck compared with the rest of Utah?
St. George is 5% below the Utah statewide estimate ($16,600 at the midpoint). We cover 5 metros in Utah; see the state page to compare them.
+What do carpenters earn in St. George?
The BLS median is $22.63 an hour in the St. George area, compared with $29.12 nationally. The 25th to 75th percentile range is $19.45 to $28.36.
+What do basic and premium composite deck work cost in St. George?
For 300 sq ft, basic work runs $10,500 to $14,800 and premium work $16,900 to $21,100. 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 St. George?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are October through May. April and May 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 St. George?
$1,600 to $4,800 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near St. George
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