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30×40 Barndominium Shell Cost in Cape Coral–Fort Myers, FL (2026)
A 30×40 barndominium shell in Cape Coral–Fort Myers, FL has a dried-in shell estimate of about $65,677 in 2026 ($54.73 per sq. ft.). Here's the itemized breakdown of materials, site prep and labor, using local crew rates. A 30×40 barndominium shell puts 1,200 square feet under a steel roof, a size that fits a compact home, an in-law suite or a garage apartment on a Lee County lot.
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30×40 ft, 12 ft walls (1,200 sq. ft.)
Prices updated Oct 2026
Reference wind speed for this area: 154 mph (ASCE Hazard Tool value at the principal city, not a design value). Wind values here are reference figures for pricing. Confirm the design wind speed with your local building department or engineer.
Estimate only. Actual prices vary. No guarantee or warranty. Use as a guide only. Read the full disclaimer
Itemized cost breakdown
| # | Item | Quantity | Installed |
|---|---|---|---|
| 1 | Site grading & building padLaser-leveled pad 2 ft past the walls, compacted fill | 1,496 sq ft | $1,888 |
| 2 | 4" standard concrete slab + plumbing sleeves3,500 PSI ready-mix, #4 rebar 18" grid, vapor barrier, forms | 15.9 cu yd | $9,730 |
| 3 | 6×6 treated posts, girts & framing lumber18 posts × 16 ft (.60 CCA ground-contact), 2×6 girts at 2 ft incl. gable girts, 2×8 treated skirt board | 18 posts + 888 lf | $11,083 |
| 4 | 30' engineered roof trusses & purlins21 trusses at 2 ft on center, high-wind allowance, 2×4 purlins at 2 ft (18 rows) | 21 trusses + 756 lf | $11,837 |
| 5 | 29-ga metal roof & wall panels + trimPainted steel panels, ridge cap, corner/door/base trim, closures | 31.5 squares | $7,338 |
| 6 | Doors & windowsDetails in the spec sheet | 🔒 Included in $9.99 spec sheet | 🔒 |
| 7 | Closed-cell spray foam (roof & walls)Details in the spec sheet | 🔒 Included in $9.99 spec sheet | 🔒 |
| 8 | Screws, hardware & condensation barrierDetails in the spec sheet | 🔒 Included in $9.99 spec sheet | 🔒 |
| 9 | Permit, stamped drawings & deliveryDetails in the spec sheet | 🔒 Included in $9.99 spec sheet | 🔒 |
| Dried-in shell estimate | $65,677 |
The totals above already include every row, including the 🔒 rows. The $9.99 spec sheet lists them item by item with quantities.
What do these terms mean?
- 29-ga metal: the steel panel thickness (a lower gauge number is thicker).
- .60 CCA posts: treated posts rated to go in the ground.
- Purlins and girts: boards across the roof and walls that the metal panels screw into.
- PSI: a concrete strength rating.
- #4 rebar: ½-inch steel bar laid in a grid inside the concrete.
- Vapor barrier: plastic sheeting under the slab that keeps ground moisture out.
Prices use 2026 material costs and typical local crew rates. Site work, custom options and material price swings can move your final price.
Builder Spec Sheet & Shopping List
A sheet for comparing 3 builder bids line by line, and a builder-ready spec so every builder prices the same building.
- Every line item on this page, including the 🔒 rows, in an editable Excel file and a PDF (spec, quantity, materials, labor and installed price)
- A permit and site-prep checklist
- A full itemized takeoff: panel cut lengths, trim, a fastener schedule, lumber counts and concrete yards, with the spacing rule and source for each line
30-day money-back.
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Save my requestPlanning a 30×40 barndominium shell in the Cape Coral–Fort Myers area
A 30×40 barndominium shell (1,200 square feet) suits a small home or guest house on a rural Lee County tract. Consider scheduling shell work for the dry months, roughly November to April, when monthly rain normals stay at about 2.5 inches or less. Ask builders how they protect an open shell during the summer rainy season.
- Page Field in Fort Myers averages about 120 days a year at 90°F or more and almost never freezes (NOAA 1991–2020).
- Flood risk varies across Lee County. Look up your lot on FEMA's Flood Map Service Center before the pad height and fill are priced.
Cape Coral–Fort Myers versus the Florida statewide estimate
For a 30×40 barndominium shell, the Cape Coral–Fort Myers estimate runs about 3% below the Florida statewide figure (both are estimates; bids set the real price). Cape Coral–Fort Myers construction and extraction wages averaged about 82% of the U.S. mean in May 2025 (BLS OEWS), and Cape Coral–Fort Myers goods prices sat near 96% of the U.S. level in 2024 (BEA RPP). That Cape Coral–Fort Myers area factor applies fully to crew labor and partly to materials; the Florida statewide page uses an internal planning allowance instead.
Building in Lee County: growth, rain and lots
The Cape Coral–Fort Myers metro area is Lee County, which had about 861,000 residents in July 2024, up about 13 percent since 2020. Cape Coral, at about 233,000 people, is the largest city. Fort Myers had about 99,900, Bonita Springs about 57,100 and Estero about 38,400. Lee County authorized about 9,960 new single-unit homes in 2025, more than any other county among the 11 southeast metro areas in this group.
The seasons are mostly wet and dry. Fort Myers Page Field Airport averages about 10.4 inches of rain in August, 9.7 in June, 9.4 in July and 9.0 in September. From November through February each month averages about 2.4 inches or less. Freezing nights are rare: the normal is about 0.1 nights a year.
There is farmland inland, too: 813 farms in 2022, averaging about 112 acres, and 396 of them under 10 acres.
Cape Coral added about 39,000 residents from April 2020 to July 2024, growing about 20 percent, and Fort Myers grew about 16 percent. Sanibel and Fort Myers Beach were the two Lee County towns that lost population over that span. On the farm side, only 73 of Lee's farms were 50 to 179 acres in 2022, against 281 of 10 to 49 acres.
Normal lows at Page Field never drop below about 54°F in any month, and about 5 April days and 6.6 October days reach 90°F or hotter. From November through March the monthly precipitation normals stay between about 1.8 and 2.4 inches. August averages about 7.6 days with half an inch of rain or more and 3.6 with an inch or more.
Lee County ranked 19th in Florida for nursery, greenhouse, floriculture and sod sales in 2022, and its farms held about 9,900 cattle and calves and 660 horses and ponies.
Local building offices
Contact the office for your address to confirm what applies to your project.
- City of Cape Coral Permitting Services Division (the City of Cape Coral)
- City of Fort Myers Building, Permitting & Inspections (the City of Fort Myers)
If your address is outside the two cities above, contact Lee County government or your city.
Statewide reference: Florida Building Code Information System
Site references to look up for your Cape Coral–Fort Myers address
The Cape Coral-Fort Myers, FL metro area (Census CBSA 15980) covers a lot of ground, so look up the exact parcel rather than the city.
- ASCE Hazard Tool: wind, snow and other site loads for the Cape Coral–Fort Myers-area parcel
- USDA NRCS Web Soil Survey: the soil map units under your Cape Coral–Fort Myers site, including shrink-swell ratings
- FEMA Flood Map Service Center: the flood zone for your Cape Coral–Fort Myers address
- NOAA Storm Prediction Center: severe-weather background for Lee County
- NOAA National Hurricane Center: tropical storm and hurricane background for the Cape Coral–Fort Myers area
General planning reference from ASCE, USDA NRCS, FEMA and NOAA, retrieved October 26, 2026. Not a design value. Your engineer, builder and local authority set actual requirements.
Cape Coral–Fort Myers climate at a glance
Fort Myers Page Field Airport (NOAA station USW00012835) averages 75.4°F over the year, with about 57.41 inches of precipitation, about 120 days at 90°F or hotter and about 0 nights at 32°F or colder.
General planning reference from NOAA NCEI U.S. Climate Normals 1991–2020, retrieved October 26, 2026. Not a design value. Your engineer, builder and local authority set actual requirements. NOAA NCEI U.S. Climate Normals (1991–2020)
Compared with the other 5 Florida metro areas in these guides, Cape Coral–Fort Myers has the highest count of 90°F days (range 68 in Pensacola to 120 in Cape Coral–Fort Myers), the lowest count of freezing nights and the third-highest yearly precipitation (48.31 inches in Gainesville to 68.31 in Pensacola).
Cape Coral–Fort Myers month by month
| Month | High °F | Low °F | Rain, in | Days ≥0.5 in | Days ≥90°F | Nights ≤32°F |
|---|---|---|---|---|---|---|
| Jan | 75 | 54.3 | 2.4 | 1.5 | 0 | 0.1 |
| Feb | 78 | 56.6 | 1.8 | 1.2 | 0 | 0 |
| Mar | 81.1 | 59.6 | 2.1 | 1.1 | 0.6 | 0 |
| Apr | 85.3 | 64.3 | 2.4 | 1.7 | 5 | 0 |
| May | 89.5 | 69.1 | 3.5 | 2.4 | 16.3 | 0 |
| Jun | 91 | 73.6 | 9.7 | 6.1 | 22 | 0 |
| Jul | 91.6 | 74.7 | 9.4 | 6.4 | 24.6 | 0 |
| Aug | 91.7 | 75.1 | 10.4 | 7.6 | 25.2 | 0 |
| Sep | 90 | 74.3 | 9 | 5.4 | 19.5 | 0 |
| Oct | 86.6 | 69.4 | 3.1 | 1.6 | 6.6 | 0 |
| Nov | 81.3 | 61.8 | 1.8 | 1 | 0.4 | 0 |
| Dec | 77.3 | 57.3 | 1.9 | 1.2 | 0 | 0 |
Cape Coral–Fort Myers wettest: Aug (10.4 in). Cape Coral–Fort Myers driest: Nov (1.8 in). May, Jun, Jul, Aug and Sep: 10+ days at 90°F each. No Cape Coral–Fort Myers month averages 5 freezing nights. Jun–Sep deliver 38.5 of Cape Coral–Fort Myers's 57.4 inches (67%). Cape Coral–Fort Myers lows bottom out near 54.3°F in Jan; highs peak near 91.7°F in Aug. Roughly 18 Cape Coral–Fort Myers days a year bring 1 inch or more.
NOAA normals, USW00012835, Fort Myers Page Field Airport.
Counties, cities and towns in the Cape Coral–Fort Myers metro area
The Cape Coral-Fort Myers, FL metro area is Lee County, FL, with about 860,959 residents in July 2024. The price on this page is one figure for the whole metro area, so use the calculator if your site is far from the core.
Cape Coral–Fort Myers places (6 incorporated, July 2024 residents within these counties): Cape Coral 233,025 (+20.1%); Fort Myers 99,918 (+15.6%); Bonita Springs 57,112 (+6.4%); Estero 38,443 (+4%); Sanibel 6,358 (−0.4%); Fort Myers Beach 5,308 (−4.9%).
| County | 2024 pop. | Since 2020 | 1-unit homes authorized, 2025 | Farms, 2022 | Avg. farm acres |
|---|---|---|---|---|---|
| Lee County, FL | 860,959 | +13.2% | 9,962 | 813 | 112 |
Lee County authorized 9,962 single-unit homes in 2025 and grew +13.2% from April 2020 to July 2024. The 2022 farm census counted 813 farms in Lee County; 677 of them (83%) had under 50 acres, averaging 112 acres overall; the count changed +2% from 2017. By use, Cape Coral–Fort Myers farmland broke down as 34,192 acres of cropland, 32,941 of pasture and 15,954 of woodland, so cropland led.
Census city and town estimates; Census Building Permits Survey; USDA NASS county profiles; Census county estimates. Retrieved October 26, 2026.
Material suppliers near Cape Coral–Fort Myers
Listed for reference, not an endorsement.
- American Metal Roofing Supply: metal roofing and building panels (Lexington Ave, Fort Myers, per its website)
- Precision Metal Innovations: metal roofing and building panels (North Fort Myers, per its website)
- Metal Maniacs Roofing Supply: metal roofing and building panels (Lee Rd, Fort Myers, per its website)
Office and supplier links checked October 26, 2026.
Common questions
How much does a 30×40 Barndominium Shell cost in Cape Coral–Fort Myers, FL?
About $65,677 for a dried-in shell (structure, roof, walls and doors), built by a local crew. Interior finish, utilities and site work are not included. Roughly $28,613 for the materials kit alone. Most fair bids land between $55,825 and $78,812.
What drives the price up or down?
Site prep (slope, soil, driveway access), floor choice, doors and insulation, and local labor rates. Lumber and steel prices also move a few percent a year.
Do I need a permit?
Permit requirements vary by county and city. Check with your county or city building office before you build.
How do I make sure I'm getting a fair quote?
Get at least 3 itemized bids for the same spec. Compare them line by line against this breakdown and ask about anything far above or below it.
Who do I contact about a barndominium in Cape Coral or Fort Myers?
Inside city limits, start with the City of Cape Coral Permitting Services Division or the City of Fort Myers Building, Permitting & Inspections office (links below). In unincorporated Lee County or another city, contact that government. Ask the office to confirm what applies to your project.
Why does pad height matter for a Lee County barndo?
Flood zones and ground elevation can vary from lot to lot. The height of the pad changes how much fill and site work you pay for, so check the FEMA flood map and get the site work quoted on its own line.
Estimate only. Actual prices vary. No guarantee or warranty. Use as a guide only. Read the full disclaimer
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