30x30 Garage Cost (2026): $95,901 to $147,540, Itemized
A 30x30 detached garage costs about $95,901 to $147,540 and a 30x36 about $106,002 to $163,080, each on a slab with a truss roof, vinyl siding, two 10x8 doors, a new electric service and a mini-split, itemized with crew hours.
Describe it
Review the draft
The 30x36 garage in the Clamp app: described the way a builder would text it, then the review draft with what's included, what's not and what's assumed, before the itemized estimate. Sample data.
Describe it
Review the draft
The 30x30 garage in the Clamp app: described the way a builder would text it, then the review draft, priced as new construction, with what's included, what's not and what's assumed, before the itemized estimate. Sample data.
Two builds, side by side
Two builds, the same garage at two sizes: 30x30 and 30x36.
| Build | Job cost | Labor | Crew hours | Materials | Illustrative selling price |
|---|---|---|---|---|---|
| A. 30x36 slab garage, mini-split | $81,540 | $30,436 | 469 to 579 h | $45,958 | $106,002 to $163,080 |
| B. 30x30 slab garage, mini-split | $73,770 | $27,755 | 427 to 527 h | $41,507 | $95,901 to $147,540 |
Materials include allowances. Illustrative selling price is the job cost at a 30% to 100% markup; your price depends on your own overhead and profit. Labor hours are a planning range and include setup, daily cleanup and material runs; they are never a charge to the customer. Permit and inspection fees are not included; requirements vary by jurisdiction.
Which price is closer to yours?
- Lean, +30%: A handyman or owner-operator who does the work with a small crew and no office. Usually the lowest quote. The owner handles scheduling, questions and callbacks around the work itself.
- Standard, +50%: A remodeling company with a crew, an office, insurance and someone to answer the phone. Close to the average remodeler's overhead in the National Association of Home Builders cost-of-doing-business survey.
- Full-Service, +100%: A design-build firm with designers, a salesperson and a project manager who runs the job. The extra pays for planning, coordination and one point of contact from design to final inspection.
Higher markup means more business behind the job, not by itself better work, and a lower markup is not by itself a better deal. For contractors: how each markup splits into overhead and profit is in the overhead categories guide.
Each build in detail
A. 30x36 slab garage, mini-split: $81,540
Footings, frost wall and a 1,080 sq ft slab; framed walls and a truss roof with shingles, vinyl siding and gutters; two insulated 10x8 overhead doors with openers and an entry door; a new electric service with lights and outlets; an 18,000 BTU mini-split; grading and sod. Labor is $30,436 of the $81,540 job cost, or 37.3%. It is about 469 to 579 hours of work, including setup, daily cleanup and material runs.
Labor cost by trade
Labor only. Materials, allowances and dump fees are in the line items below. Hours are person-hours at typical production from Clamp’s labor hours catalog, as a range: a planning figure, not a schedule and not a charge to the customer.
| Trade | Hours | Labor cost | Lean×1.30 | Standard×1.50 | Full-Service×2.00 |
|---|---|---|---|---|---|
| Sitework | 3 to 6 h | $302 | $392 | $453 | $604 |
| Masonry | 122 to 190 h | $7,649 | $9,944 | $11,474 | $15,298 |
| Electrical | 40 to 56 h | $5,229 | $6,798 | $7,844 | $10,458 |
| HVAC | 8 to 15 h | $1,562 | $2,030 | $2,343 | $3,124 |
| Carpentry | 111 to 152 h | $8,103 | $10,534 | $12,154 | $16,206 |
| Exterior | 42 to 70 h | $3,596 | $4,675 | $5,394 | $7,192 |
| Roofing | 27 to 44 h | $3,419 | $4,445 | $5,128 | $6,838 |
| Landscaping | 8 to 17 h | $576 | $749 | $864 | $1,152 |
| Setup, cleanup and material runs | 34 to 103 h | in the prices | |||
| All labor | 469 to 579 h | $30,436 | $39,567 | $45,654 | $60,872 |
Every line item
Labor $30,436 + materials and allowances $45,958 + dump fees and other $5,146 = $81,540 direct job cost. Hours are person-hours at typical production, on labor rows only, and the direct-cost row adds about 15% for setup, daily cleanup and material runs; an allowance or material row names the labor line that installs it, and a subcontract row has none, because the sub’s price includes their own time. Some labor quantities include a difficulty factor, so they can exceed the measured area; each row’s derivation is in the downloadable data.
| Item | Qty | Unit | Hours | Labor | Material | Line cost |
|---|---|---|---|---|---|---|
| Permits & PM | ||||||
| Permit Drawing Set (Design and Drafting) | 1 | ea | $0 | $0 | $2,025 | |
| Permits & PM subtotal | $2,025 | |||||
| Permits & PM subtotal | $2,025 | |||||
| Sitework | ||||||
| Excavation Spoils Export (Per Cubic Yard) | 29.5 | cy | $0 | $0 | $1,033 | |
| Foundation Excavation (Machine, Per Cubic Yard) | 59 | cy | $0 | $0 | $944 | |
| Site Grading Labor | 1048 | sf | 1 to 2 h | $115 | $0 | $115 |
| Trenching Labor | 50 | lf | 2 to 5 h | $187 | $0 | $187 |
| Sitework subtotal | 3 to 6 h | $2,279 | ||||
| Sitework subtotal | 3 to 6 h | $2,279 | ||||
| Masonry | ||||||
| Concrete Flatwork Install Labor | 1080 | sf | 33 to 70 h | $3,348 | $0 | $3,348 |
| Concrete Flatwork MaterialsLabor on: Concrete Flatwork Install Labor | 1188 | sf | $0 | $6,237 | $6,237 | |
| Concrete Footing Install Labor | 131 | lf | 20 to 43 h | $1,376 | $0 | $1,376 |
| Concrete Footing MaterialsLabor on: Concrete Footing Install Labor | 144.1 | lf | $0 | $2,089 | $2,089 | |
| Foundation Pour Labor | 13 | cy | 47 to 99 h | $2,925 | $0 | $2,925 |
| Foundation Pour MaterialsLabor on: Foundation Pour Labor | 14.3 | cy | $0 | $4,076 | $4,076 | |
| Under-Slab Vapor Retarder (per sf) | 1080 | sf | $0 | $0 | $594 | |
| Masonry subtotal | 122 to 190 h | $20,645 | ||||
| Masonry subtotal | 122 to 190 h | $20,645 | ||||
| Electrical | ||||||
| New Branch Circuit Install Labor (per circuit) | 3 | ea | 6 to 15 h | $891 | $0 | $891 |
| Dedicated Circuit BreakerLabor on: New Branch Circuit Install Labor (per circuit) | 3 | ea | $0 | $72 | $72 | |
| Electrical Box and Device MaterialsLabor on: Electrical Rough-In Per Device | 22 | ea | $0 | $187 | $187 | |
| Electrical Rough ConsumablesLabor on: Electrical Rough-In Per Device | 2 | ea | $0 | $13 | $13 | |
| Electrical Rough-In Per Device | 20 | ea | 7 to 17 h | $840 | $0 | $840 |
| Feeder Cable Materials | 63 | lf | $0 | $268 | $268 | |
| GFCI Receptacle or AFCI Breaker Install | 2 | ea | 1 to 2 h | $96 | $0 | $96 |
| GFCI UnitLabor on: GFCI Receptacle or AFCI Breaker Install | 2 | ea | $0 | $40 | $40 | |
| HVAC Condenser Disconnect | 1 | ea | $0 | $35 | $35 | |
| Light Fixture AllowanceLabor on: Light Fixture Install | 10 | ea | $0 | $1,500 | $1,500 | |
| Light Fixture Install | 10 | ea | 5 to 12 h | $850 | $0 | $850 |
| Meter SocketLabor on: Service Meter and Riser Install | 1 | ea | $0 | $150 | $150 | |
| Outlet/Switch Install | 4 | ea | 1 to 2 h | $120 | $0 | $120 |
| Outlet UnitLabor on: Outlet/Switch Install | 4 | ea | $0 | $18 | $18 | |
| Romex Wire MaterialsLabor on: Electrical Rough-In Per Device | 235.75 | lf | $0 | $189 | $189 | |
| Service Meter and Riser Install | 1 | ea | 4 to 10 h | $1,200 | $0 | $1,200 |
| Service PanelLabor on: Service Panel Install Labor | 1 | ea | $0 | $589 | $589 | |
| Service Panel Install Labor | 1 | ea | 4 to 11 h | $1,232 | $0 | $1,232 |
| Switch UnitLabor on: Outlet/Switch Install | 2 | ea | $0 | $9 | $9 | |
| Underground Electrical Conduit (per lf)Labor on: Trenching Labor | 52.5 | lf | $0 | $144 | $144 | |
| Electrical subtotal | 40 to 56 h | $8,443 | ||||
| Electrical subtotal | 40 to 56 h | $8,443 | ||||
| HVAC | ||||||
| Condensate Drain Install | 1 | ea | 1 to 3 h | $150 | $0 | $150 |
| Mini-Split Install Labor (per indoor head) | 1 | ea | 5 to 11 h | $1,200 | $0 | $1,200 |
| HVAC Install Consumables | 1 | ea | $0 | $285 | $285 | |
| Mini-Split Equipment (Outdoor Unit and Indoor Heads)Labor on: Mini-Split Install Labor (per indoor head) | 1 | ea | $0 | $3,600 | $3,600 | |
| Refrigerant Line Set Install | 25 | lf | 1 to 4 h | $212 | $0 | $212 |
| Refrigerant Line MaterialsLabor on: Refrigerant Line Set Install | 28.75 | lf | $0 | $244 | $244 | |
| HVAC subtotal | 8 to 15 h | $5,691 | ||||
| HVAC subtotal | 8 to 15 h | $5,691 | ||||
| Carpentry | ||||||
| Door Lock Hardware AllowanceLabor on: Exterior Door Install | 1 | ea | $0 | $95 | $95 | |
| Door Unit AllowanceLabor on: Exterior Door Install | 1 | ea | $0 | $450 | $450 | |
| Engineered Beam Material | 2 | ea | $0 | $642 | $642 | |
| Exterior Door Install | 1 | ea | 2 to 5 h | $500 | $0 | $500 |
| Exterior Wall Framing MaterialsLabor on: Stud Wall Framing Install | 138.03 | lf | $0 | $2,330 | $2,330 | |
| Header Installation | 2 | ea | 11 to 25 h | $587 | $0 | $587 |
| Sheathing Install | 2664.53 | sf | 20 to 44 h | $2,931 | $0 | $2,931 |
| Stud Wall Framing Install | 164.32 | lf | 21 to 45 h | $1,643 | $0 | $1,643 |
| Garage Door Install (per door) | 2 | ea | 10 to 22 h | $965 | $0 | $965 |
| Garage Door Opener (per opener)Labor on: Garage Door Opener Install Labor | 2 | ea | $0 | $650 | $650 | |
| Garage Door Opener Install Labor | 2 | ea | 4 to 10 h | $330 | $0 | $330 |
| Garage Door Unit (per door)Labor on: Garage Door Install (per door) | 2 | ea | $0 | $2,794 | $2,794 | |
| Roof Trusses and Roof Sheathing Materials (per roofing square)Labor on: Roof Truss Set and Brace (per roofing square) | 14.18 | square | $0 | $6,877 | $6,877 | |
| Roof Truss Set and Brace (per roofing square) | 13.5 | square | 14 to 30 h | $1,147 | $0 | $1,147 |
| Wall Sheathing MaterialsLabor on: Sheathing Install | 1445.99 | sf | $0 | $1,374 | $1,374 | |
| Window and Door Install ConsumablesLabor on: Exterior Door Install | 1 | ea | $0 | $48 | $48 | |
| Carpentry subtotal | 111 to 152 h | $23,363 | ||||
| Carpentry subtotal | 111 to 152 h | $23,363 | ||||
| Exterior | ||||||
| Exterior Caulking and Sealing Labor | 66.2 | lf | 1 to 3 h | $96 | $0 | $96 |
| Exterior Trim Install | 18 | lf | 1 to 2 h | $77 | $0 | $77 |
| Soffit and Fascia Install | 154 | lf | 13 to 29 h | $1,001 | $0 | $1,001 |
| Soffit and Fascia MaterialsLabor on: Soffit and Fascia Install | 169.4 | lf | $0 | $1,440 | $1,440 | |
| Vinyl Siding Install Labor | 1309 | sf | 20 to 43 h | $2,422 | $0 | $2,422 |
| Vinyl Siding MaterialsLabor on: Vinyl Siding Install Labor | 1439.9 | sf | $0 | $4,464 | $4,464 | |
| Exterior Window and Door Trim MaterialsLabor on: Exterior Trim Install | 18 | lf | $0 | $58 | $58 | |
| Exterior subtotal | 42 to 70 h | $9,558 | ||||
| Exterior subtotal | 42 to 70 h | $9,558 | ||||
| Cleanup & Disposal | ||||||
| Dumpster Rental Weekly | 1 | week | $0 | $0 | $550 | |
| Cleanup & Disposal subtotal | $550 | |||||
| Cleanup & Disposal subtotal | $550 | |||||
| General | ||||||
| Installation Supplies | 1 | ls | $0 | $85 | $85 | |
| General subtotal | $85 | |||||
| General subtotal | $85 | |||||
| Roofing | ||||||
| Asphalt Shingle Install Labor | 13.5 | square | 14 to 30 h | $2,430 | $0 | $2,430 |
| Asphalt Shingle MaterialsLabor on: Asphalt Shingle Install Labor | 14.85 | square | $0 | $2,599 | $2,599 | |
| Downspout Install Labor | 2 | ea | 1 to 3 h | $110 | $0 | $110 |
| Downspout MaterialsLabor on: Downspout Install Labor | 2 | ea | $0 | $110 | $110 | |
| Drip Edge MaterialsLabor on: Asphalt Shingle Install Labor | 154.32 | lf | $0 | $147 | $147 | |
| Gutter Install Labor | 70 | lf | 3 to 8 h | $315 | $0 | $315 |
| Gutter MaterialsLabor on: Gutter Install Labor | 77 | lf | $0 | $423 | $423 | |
| Ice Water Shield Install Labor | 2.03 | square | 1 to 3 h | $73 | $0 | $73 |
| Ice Water Shield MaterialsLabor on: Ice Water Shield Install Labor | 2.03 | square | $0 | $193 | $193 | |
| Ridge Vent Install Labor | 44.09 | lf | 1 to 2 h | $86 | $0 | $86 |
| Ridge Vent MaterialsLabor on: Ridge Vent Install Labor | 44.09 | lf | $0 | $187 | $187 | |
| Synthetic Underlayment Install Labor | 13.5 | square | 2 to 6 h | $405 | $0 | $405 |
| Synthetic Underlayment Materials | 14.18 | square | $0 | $312 | $312 | |
| Roofing subtotal | 27 to 44 h | $7,390 | ||||
| Roofing subtotal | 27 to 44 h | $7,390 | ||||
| Landscaping | ||||||
| Sod Install Labor | 1048 | sf | 8 to 17 h | $576 | $0 | $576 |
| Sod MaterialsLabor on: Sod Install Labor | 1100.4 | sf | $0 | $935 | $935 | |
| Landscaping subtotal | 8 to 17 h | $1,511 | ||||
| Landscaping subtotal | 8 to 17 h | $1,511 | ||||
| DIRECT JOB COST | 469 to 579 h | $81,540 | ||||
| DIRECT JOB COST | 469 to 579 h | $81,540 | ||||
B. 30x30 slab garage, mini-split: $73,770
Footings, frost wall and a 900 sq ft slab; framed walls and a truss roof with shingles, vinyl siding and gutters; two insulated 10x8 overhead doors with openers and an entry door; a new electric service with lights and outlets; an 18,000 BTU mini-split; grading and sod. Labor is $27,755 of the $73,770 job cost, or 37.6%. It is about 427 to 527 hours of work, including setup, daily cleanup and material runs.
Labor cost by trade
Labor only. Materials, allowances and dump fees are in the line items below. Hours are person-hours at typical production from Clamp’s labor hours catalog, as a range: a planning figure, not a schedule and not a charge to the customer.
| Trade | Hours | Labor cost | Lean×1.30 | Standard×1.50 | Full-Service×2.00 |
|---|---|---|---|---|---|
| Sitework | 3 to 6 h | $293 | $381 | $440 | $586 |
| Masonry | 109 to 169 h | $6,730 | $8,749 | $10,095 | $13,460 |
| Electrical | 39 to 54 h | $5,102 | $6,633 | $7,653 | $10,204 |
| HVAC | 8 to 15 h | $1,562 | $2,031 | $2,343 | $3,124 |
| Carpentry | 102 to 139 h | $7,395 | $9,613 | $11,093 | $14,790 |
| Exterior | 38 to 63 h | $3,246 | $4,220 | $4,869 | $6,492 |
| Roofing | 23 to 38 h | $2,899 | $3,769 | $4,348 | $5,798 |
| Landscaping | 7 to 16 h | $528 | $686 | $792 | $1,056 |
| Setup, cleanup and material runs | 31 to 94 h | in the prices | |||
| All labor | 427 to 527 h | $27,755 | $36,082 | $41,633 | $55,510 |
Every line item
Labor $27,755 + materials and allowances $41,507 + dump fees and other $4,508 = $73,770 direct job cost. Hours are person-hours at typical production, on labor rows only, and the direct-cost row adds about 15% for setup, daily cleanup and material runs; an allowance or material row names the labor line that installs it, and a subcontract row has none, because the sub’s price includes their own time. Some labor quantities include a difficulty factor, so they can exceed the measured area; each row’s derivation is in the downloadable data.
| Item | Qty | Unit | Hours | Labor | Material | Line cost |
|---|---|---|---|---|---|---|
| Permits & PM | ||||||
| Permit Drawing Set (Design and Drafting) | 1 | ea | $0 | $0 | $1,687 | |
| Permits & PM subtotal | $1,687 | |||||
| Permits & PM subtotal | $1,687 | |||||
| Sitework | ||||||
| Excavation Spoils Export (Per Cubic Yard) | 26.5 | cy | $0 | $0 | $928 | |
| Foundation Excavation (Machine, Per Cubic Yard) | 53 | cy | $0 | $0 | $848 | |
| Site Grading Labor | 960 | sf | 1 to 2 h | $106 | $0 | $106 |
| Trenching Labor | 50 | lf | 2 to 5 h | $187 | $0 | $187 |
| Sitework subtotal | 3 to 6 h | $2,069 | ||||
| Sitework subtotal | 3 to 6 h | $2,069 | ||||
| Masonry | ||||||
| Concrete Flatwork Install Labor | 900 | sf | 28 to 59 h | $2,790 | $0 | $2,790 |
| Concrete Flatwork MaterialsLabor on: Concrete Flatwork Install Labor | 990 | sf | $0 | $5,198 | $5,198 | |
| Concrete Footing Install Labor | 120 | lf | 18 to 39 h | $1,260 | $0 | $1,260 |
| Concrete Footing MaterialsLabor on: Concrete Footing Install Labor | 132 | lf | $0 | $1,914 | $1,914 | |
| Foundation Pour Labor | 11.91 | cy | 43 to 91 h | $2,680 | $0 | $2,680 |
| Foundation Pour MaterialsLabor on: Foundation Pour Labor | 13.1 | cy | $0 | $3,734 | $3,734 | |
| Under-Slab Vapor Retarder (per sf) | 900 | sf | $0 | $0 | $495 | |
| Masonry subtotal | 109 to 169 h | $18,071 | ||||
| Masonry subtotal | 109 to 169 h | $18,071 | ||||
| Electrical | ||||||
| New Branch Circuit Install Labor (per circuit) | 3 | ea | 6 to 15 h | $891 | $0 | $891 |
| Dedicated Circuit BreakerLabor on: New Branch Circuit Install Labor (per circuit) | 3 | ea | $0 | $72 | $72 | |
| Electrical Box and Device MaterialsLabor on: Electrical Rough-In Per Device | 21 | ea | $0 | $179 | $179 | |
| Electrical Rough ConsumablesLabor on: Electrical Rough-In Per Device | 2 | ea | $0 | $13 | $13 | |
| Electrical Rough-In Per Device | 19 | ea | 7 to 16 h | $798 | $0 | $798 |
| Feeder Cable Materials | 63 | lf | $0 | $268 | $268 | |
| GFCI Receptacle or AFCI Breaker Install | 2 | ea | 1 to 2 h | $96 | $0 | $96 |
| GFCI UnitLabor on: GFCI Receptacle or AFCI Breaker Install | 2 | ea | $0 | $40 | $40 | |
| HVAC Condenser Disconnect | 1 | ea | $0 | $35 | $35 | |
| Light Fixture AllowanceLabor on: Light Fixture Install | 9 | ea | $0 | $1,350 | $1,350 | |
| Light Fixture Install | 9 | ea | 4 to 11 h | $765 | $0 | $765 |
| Meter SocketLabor on: Service Meter and Riser Install | 1 | ea | $0 | $150 | $150 | |
| Outlet/Switch Install | 4 | ea | 1 to 2 h | $120 | $0 | $120 |
| Outlet UnitLabor on: Outlet/Switch Install | 4 | ea | $0 | $18 | $18 | |
| Romex Wire MaterialsLabor on: Electrical Rough-In Per Device | 228.85 | lf | $0 | $183 | $183 | |
| Service Meter and Riser Install | 1 | ea | 4 to 10 h | $1,200 | $0 | $1,200 |
| Service PanelLabor on: Service Panel Install Labor | 1 | ea | $0 | $589 | $589 | |
| Service Panel Install Labor | 1 | ea | 4 to 11 h | $1,232 | $0 | $1,232 |
| Switch UnitLabor on: Outlet/Switch Install | 2 | ea | $0 | $9 | $9 | |
| Underground Electrical Conduit (per lf)Labor on: Trenching Labor | 52.5 | lf | $0 | $144 | $144 | |
| Electrical subtotal | 39 to 54 h | $8,152 | ||||
| Electrical subtotal | 39 to 54 h | $8,152 | ||||
| HVAC | ||||||
| Condensate Drain Install | 1 | ea | 1 to 3 h | $150 | $0 | $150 |
| Mini-Split Install Labor (per indoor head) | 1 | ea | 5 to 11 h | $1,200 | $0 | $1,200 |
| HVAC Install Consumables | 1 | ea | $0 | $285 | $285 | |
| Mini-Split Equipment (Outdoor Unit and Indoor Heads)Labor on: Mini-Split Install Labor (per indoor head) | 1 | ea | $0 | $3,600 | $3,600 | |
| Refrigerant Line Set Install | 25 | lf | 1 to 4 h | $212 | $0 | $212 |
| Refrigerant Line MaterialsLabor on: Refrigerant Line Set Install | 28.75 | lf | $0 | $244 | $244 | |
| HVAC subtotal | 8 to 15 h | $5,691 | ||||
| HVAC subtotal | 8 to 15 h | $5,691 | ||||
| Carpentry | ||||||
| Door Lock Hardware AllowanceLabor on: Exterior Door Install | 1 | ea | $0 | $95 | $95 | |
| Door Unit AllowanceLabor on: Exterior Door Install | 1 | ea | $0 | $450 | $450 | |
| Engineered Beam Material | 2 | ea | $0 | $642 | $642 | |
| Exterior Door Install | 1 | ea | 2 to 5 h | $500 | $0 | $500 |
| Exterior Wall Framing MaterialsLabor on: Stud Wall Framing Install | 126 | lf | $0 | $2,127 | $2,127 | |
| Header Installation | 2 | ea | 11 to 25 h | $587 | $0 | $587 |
| Sheathing Install | 2325 | sf | 18 to 38 h | $2,557 | $0 | $2,557 |
| Stud Wall Framing Install | 150 | lf | 19 to 41 h | $1,500 | $0 | $1,500 |
| Garage Door Install (per door) | 2 | ea | 10 to 22 h | $965 | $0 | $965 |
| Garage Door Opener (per opener)Labor on: Garage Door Opener Install Labor | 2 | ea | $0 | $650 | $650 | |
| Garage Door Opener Install Labor | 2 | ea | 4 to 10 h | $330 | $0 | $330 |
| Garage Door Unit (per door)Labor on: Garage Door Install (per door) | 2 | ea | $0 | $2,794 | $2,794 | |
| Roof Trusses and Roof Sheathing Materials (per roofing square)Labor on: Roof Truss Set and Brace (per roofing square) | 11.81 | square | $0 | $5,728 | $5,728 | |
| Roof Truss Set and Brace (per roofing square) | 11.25 | square | 11 to 25 h | $956 | $0 | $956 |
| Wall Sheathing MaterialsLabor on: Sheathing Install | 1320 | sf | $0 | $1,254 | $1,254 | |
| Window and Door Install ConsumablesLabor on: Exterior Door Install | 1 | ea | $0 | $48 | $48 | |
| Carpentry subtotal | 102 to 139 h | $21,183 | ||||
| Carpentry subtotal | 102 to 139 h | $21,183 | ||||
| Exterior | ||||||
| Exterior Caulking and Sealing Labor | 62.3 | lf | 1 to 3 h | $90 | $0 | $90 |
| Exterior Trim Install | 18 | lf | 1 to 2 h | $77 | $0 | $77 |
| Soffit and Fascia Install | 141 | lf | 12 to 27 h | $916 | $0 | $916 |
| Soffit and Fascia MaterialsLabor on: Soffit and Fascia Install | 155.1 | lf | $0 | $1,318 | $1,318 | |
| Vinyl Siding Install Labor | 1169 | sf | 18 to 38 h | $2,163 | $0 | $2,163 |
| Vinyl Siding MaterialsLabor on: Vinyl Siding Install Labor | 1285.9 | sf | $0 | $3,986 | $3,986 | |
| Exterior Window and Door Trim MaterialsLabor on: Exterior Trim Install | 18 | lf | $0 | $58 | $58 | |
| Exterior subtotal | 38 to 63 h | $8,608 | ||||
| Exterior subtotal | 38 to 63 h | $8,608 | ||||
| Cleanup & Disposal | ||||||
| Dumpster Rental Weekly | 1 | week | $0 | $0 | $550 | |
| Cleanup & Disposal subtotal | $550 | |||||
| Cleanup & Disposal subtotal | $550 | |||||
| General | ||||||
| Installation Supplies | 1 | ls | $0 | $85 | $85 | |
| General subtotal | $85 | |||||
| General subtotal | $85 | |||||
| Roofing | ||||||
| Asphalt Shingle Install Labor | 11.25 | square | 11 to 25 h | $2,025 | $0 | $2,025 |
| Asphalt Shingle MaterialsLabor on: Asphalt Shingle Install Labor | 12.38 | square | $0 | $2,167 | $2,167 | |
| Downspout Install Labor | 2 | ea | 1 to 3 h | $110 | $0 | $110 |
| Downspout MaterialsLabor on: Downspout Install Labor | 2 | ea | $0 | $110 | $110 | |
| Drip Edge MaterialsLabor on: Asphalt Shingle Install Labor | 140.87 | lf | $0 | $134 | $134 | |
| Gutter Install Labor | 64 | lf | 3 to 7 h | $288 | $0 | $288 |
| Gutter MaterialsLabor on: Gutter Install Labor | 70.4 | lf | $0 | $387 | $387 | |
| Ice Water Shield Install Labor | 1.69 | square | 1 to 2 h | $61 | $0 | $61 |
| Ice Water Shield MaterialsLabor on: Ice Water Shield Install Labor | 1.69 | square | $0 | $161 | $161 | |
| Ridge Vent Install Labor | 40.25 | lf | 1 to 2 h | $78 | $0 | $78 |
| Ridge Vent MaterialsLabor on: Ridge Vent Install Labor | 40.25 | lf | $0 | $171 | $171 | |
| Synthetic Underlayment Install Labor | 11.25 | square | 2 to 5 h | $337 | $0 | $337 |
| Synthetic Underlayment Materials | 11.81 | square | $0 | $260 | $260 | |
| Roofing subtotal | 23 to 38 h | $6,289 | ||||
| Roofing subtotal | 23 to 38 h | $6,289 | ||||
| Landscaping | ||||||
| Sod Install Labor | 960 | sf | 7 to 16 h | $528 | $0 | $528 |
| Sod MaterialsLabor on: Sod Install Labor | 1008 | sf | $0 | $857 | $857 | |
| Landscaping subtotal | 7 to 16 h | $1,385 | ||||
| Landscaping subtotal | 7 to 16 h | $1,385 | ||||
| DIRECT JOB COST | 427 to 527 h | $73,770 | ||||
| DIRECT JOB COST | 427 to 527 h | $73,770 | ||||
Methodology & reproducibility
2 snapshots, one per build. Each build is frozen from its own estimate run with the same old work, system type and takeoff pinned, so the builds differ only in what is being built.
Direct cost equals the sum of each row’s rounded quantity × (labor + material + other). Amounts are shown in whole dollars; every column adds to its total.
Scope selection, prose accuracy, arithmetic and provenance mapping reviewed; not independent market-rate verification.
- detached-garage-30x36-mini-split/v2: JSON, CSV, field dictionary
- detached-garage-30x30-mini-split/v2: JSON, CSV, field dictionary
Questions
How much does it cost to build a 30x30 garage?
About $95,901 to $147,540 for this one: a 900 sq ft slab garage with two 10x8 doors, a new electric service and a mini-split, from a direct job cost of $73,770. That is $81.97 a square foot in direct cost, or about $107 to $164 a square foot sold.
What does a detached garage cost per square foot?
The 30x30 garage is 900 square feet and comes to about $107 to $164 per square foot, from a direct job cost of $82 per square foot. The 30x36 is 1,080 square feet: about $98 to $151 per square foot, from $76. The smaller garage costs more per square foot because the doors, the electric service and the mini-split are the same on both; only the lines sized by the floor shrink.
What does a 30x30 garage cost compared with a 30x36?
Build B is the same garage, six feet shorter. It drops $7,770 in direct job cost, all of it from lines sized by the floor: the slab, footings, framing, roof, siding, sod, one fewer light and a smaller drawing set. The doors, the electric service and the mini-split are the same in both.
Why is there a new electric service?
There is no house on the lot yet. The garage gets its own service and panel from the utility at the property, which is a real part of the cost on a phased lot.
What can push this job higher?
A taller building or a second floor, insulation and finished interior walls, plumbing, a concrete apron or driveway, or poor soil that needs deeper footings. Each is its own line.
Is the markup on top of this?
Yes. Direct job cost is what the garage costs a contractor to perform. The markup table shows what it sells for at illustrative markups of 30% to 100%.
Is a 30x30 garage package cheaper than building one?
A garage package is a set of the building's materials, and what it includes varies by supplier, so compare it line by line with a list like this one. It doesn't include the labor, which is $27,757 across this 30x30's trades. Check whether it includes the slab and footings ($18,070 here), the electric service and wiring ($8,152) and the heat ($5,692).
Sources & provenance
- 30x36 slab garage, mini-split reviewed snapshot Clamp Research
- 30x30 slab garage, mini-split reviewed snapshot Clamp Research