A 24-by-24 garage costs about $18,000-$55,000 to build in the United States, with a typical basic-to-midrange project averaging around $32,000. The final price depends on the foundation, framing and exterior materials, site access, labor rates, permits, and whether the garage includes insulation, electrical work, or interior finishing.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Complete 24-by-24 garage | $18,000 | $32,000 | $55,000 | 576 sq ft; basic shell through upgraded build |
| Cost per square foot | $31 | $56 | $95 | Varies by region, scope, and finish |
| Concrete slab | $4,000 | $6,500 | $10,000 | About $7-$17 per sq ft, including typical prep |
| Permits and plans | $500 | $1,800 | $4,000 | Local requirements and design complexity vary |
Assumptions: 576-square-foot, two-car garage with standard access and conventional materials; land purchase is excluded.
What a 24-by-24 garage typically costs
A basic detached garage with a slab, wood framing, standard siding and roofing, and one or two overhead doors often falls around $18,000-$28,000. A more typical build with better exterior materials, electrical service, and some storage or insulation tends to cost $28,000-$40,000. Higher-end finishes, difficult site conditions, or extensive utility work can bring the total to $40,000-$55,000 or more.
For a straightforward 576-square-foot build, budgeting about $32,000 is a practical starting point, not a guaranteed quote. Attached garages may cost less when they share a wall with the house, but tying into the existing structure, roof, and fire-rated separation can offset those savings.
How slab, framing, roofing and doors shape the quote
Contractors may group several tasks into one line item, so estimates are easier to compare when major materials and labor are itemized. The ranges below are typical allowances for a standard project, not fixed national rates.
| Quote component | Typical range | Common unit or scope | What changes the price |
|---|---|---|---|
| Concrete slab and base | $4,000-$10,000 | $7-$17 per sq ft | Excavation, thickness, reinforcement, drainage |
| Framing and exterior walls | $5,000-$11,000 | $9-$19 per sq ft of floor area | Lumber, wall height, sheathing, siding |
| Roof structure and covering | $3,000-$7,000 | $5-$12 per sq ft of floor area | Roof pitch, shingles or metal, tie-in work |
| Overhead doors and installation | $1,500-$4,500 | $750-$2,250 per door | Door size, insulation, opener, windows |
| Electrical and lighting | $1,000-$4,000 | Project allowance | Panel capacity, trenching, outlets, circuits |
Foundation, exterior shell, and doors make up a large share of the quote before optional finishes are added. Assumptions: Typical U.S. materials and ordinary site access; individual line items may overlap when a contractor prices a complete package.
Which foundation and roof specs push price higher
Soil conditions and slab design matter: a standard slab on a prepared, level site may cost much less than one requiring deep excavation, retaining work, or substantial drainage improvements. A 4-inch slab is common for light residential vehicle use, while heavier loads or local engineering requirements may call for thicker concrete or added reinforcement.
Roof design also affects materials and labor. A simple gable roof with asphalt shingles is generally less costly than a complex roof with multiple valleys, a steep pitch, or metal roofing. Raising wall height from about 8 feet to 10 feet adds wall area and can require taller doors and more material. Confirm door dimensions, roof pitch, slab thickness, and local snow or wind requirements before comparing bids.
How labor hours and crew size affect a 576-square-foot build
Labor may account for roughly 30%-50% of a garage project, depending on local wages and how much of the work is subcontracted. General construction labor commonly runs about $50-$100 per worker-hour in a contractor’s billed price, while licensed electrical or concrete specialists may charge more. A small crew may work across several weeks because concrete, inspections, and subcontractor schedules create pauses between tasks.
A useful labor estimate is labor hours multiplied by the hourly rate. For example, 240-400 combined worker-hours at $50-$100 per hour implies $12,000-$40,000 in billed labor, though many fixed-price quotes bundle labor with materials and overhead rather than showing this calculation separately.
Detached versus attached 24-by-24 garage pricing
A detached garage often needs its own foundation work, exterior walls on all sides, and potentially a longer electrical trench. An attached design can reduce one exterior wall and may simplify access, but it can require structural connections, altered house roofing, fire separation, and careful drainage at the shared wall.
Prices also vary by location. Large metropolitan markets and areas with high contractor demand can run about 10%-25% above a typical national estimate; lower-cost rural markets may come in roughly 5%-15% below it when trades and materials are readily available. Distance from the house, local labor supply, and the cost of connecting utilities can matter as much as the attached or detached label.
What permits, site prep and utility work add
Permits, drawings, and inspections may total $500-$4,000, depending on the municipality and whether engineered plans are required. Clearing, grading, and excavation can add about $1,000-$6,000 on an uncomplicated site; rocky ground, poor drainage, tree removal, or a sloped lot can push site work higher. Electrical trenching may add $500-$2,500, with longer runs or service-panel upgrades costing more.
Ask the contractor to identify which site and utility charges are allowances and which are fixed prices. Local rules can set setbacks, height limits, drainage conditions, and construction details. Permit fees and inspections are location-specific, so they should be verified with the local building department before work begins.
Three sample quotes for common garage packages
These examples illustrate how scope changes the total. Actual labor hours, material prices, and regional rates will differ. Each assumes a 576-square-foot garage and excludes land acquisition.
| Build scenario | Included scope | Estimated total | Approximate price per sq ft |
|---|---|---|---|
| Basic detached | Slab, standard framing and siding, asphalt roof, one overhead door; about 220-300 labor hours | $20,000-$28,000 | $35-$49 |
| Midrange two-car | Two doors, upgraded exterior, basic electrical, some insulation; about 300-400 labor hours | $29,000-$40,000 | $50-$69 |
| Finished or difficult site | Site grading, added electrical, insulated walls, higher-grade finishes; about 380-520 labor hours | $41,000-$55,000 | $71-$95 |
A quote is most useful when its scope lists doors, electrical work, site preparation, permits, and cleanup separately.
Where to trim the 24-by-24 garage budget safely
Keeping the footprint at 24 by 24 feet, choosing a simple roof shape, and limiting custom windows or decorative exterior details can control material and labor costs. Standard-size overhead doors and common roofing or siding products are usually easier to source than custom options. Completing the driveway, drywall, or upgraded storage later may also reduce the initial build cost.
Get at least three written bids based on the same plans and finish list. Compare allowances, exclusions, disposal charges, and change-order rates rather than selecting only by the headline total. Avoid cutting required slab reinforcement, drainage, structural connections, or code-required fire separation to lower the bid.