Buyers typically pay for a detached double garage based on size, framing material, roof type, foundation, and site prep. The cost range reflects regional labor rates, permitting, and chosen finish level. This article presents practical price ranges and breaking points for a two-car, standalone structure.
Assumptions: Midwest labor rates, standard 2-car footprint (approximately 20–24 ft wide by 20–24 ft deep), concrete slab, basic siding, asphalt roof, basic doors and one window.
Typical Price Range for a Detached Double Garage by Size and Material
For a standard 20×20 to 24×24 detached double garage, total installed cost commonly falls in the following bands. Low reflects modest finishes and mid-priced materials, Average reflects common mid-tier choices, and High covers premium builds with upgraded materials and features.
Low range example: $25,000–$40,000. Average range example: $40,000–$60,000. High range example: $60,000–$75,000+.
Assumptions: standard concrete slab, wood framing, vinyl siding, asphalt shingles, basic steel overhead door pair.
Major Cost Components in a Detached Double Garage Quote
Costs break down into distinct parts that drive the final price. The table below shows typical components with per-item ranges.
| Component | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $12,000 | $20,000 | $38,000 | framing, siding, roofing, doors |
| Labor | $8,000 | $14,000 | $28,000 | skilled trades, framing to finishing |
| Foundation & Slab | $6,000 | $9,500 | $16,000 | poured concrete, reinforcement |
| Permits & Fees | $500 | $1,500 | $4,000 | local zoning, building permit |
| Delivery/Site Prep | $1,500 | $3,000 | $6,000 | material delivery, grading, trenching |
| Electrical & Lighting | $1,000 | $2,800 | $5,500 | basic outlets, ceiling lights |
| Contingency | $1,000 | $3,000 | $6,000 | 5–10% of base |
| Taxes | $1,000 | $2,000 | $4,000 | local rates |
Assumptions: single-story, standard frost line in a temperate region, no custom touches.
How Site Conditions Change the Detached Double Garage Price
Site specifics can move costs up or down quickly. Factors include soil type, drainage, proximity to utilities, and existing drive access. Septic or drainage issues may add dirt removal costs, while limited access can raise crane or labor time.
Assumptions: level lot with straightforward access; no heavy rock excavation.
Labor and Crew Size Impacts on Detached Garage Costs
Labor scales with crew size and regional wage rates. A two-person crew versus a five-person crew affects framing speed and finishing quality. Typical durations range from 7 to 14 working days for a standard 20×20 to 24×24 build, depending on weather and inspections. Higher crew intensity often reduces total calendar time but can raise labor totals.
Assumptions: standard nine-hour workdays, non-shift completion.
Regional Differences in Detached Double Garage Pricing
Prices vary by region due to labor, material costs, and permitting. The East Coast and Pacific Northwest often see higher averages than the Southeast or Midwest, with a typical regional delta of ±15–25% between markets. Local cost benchmarks matter for any bid.
Assumptions: urban to suburban markets, typical timber framing and common siding.
Material Choices That Drive Price in a 2-Car Garage
Materials determine a large portion of the bill. Wood framing with vinyl siding is common, while steel framing or brick veneer raises costs. A basic asphalt roof contrasts with metal or composite shingles. Premium materials add per-square-foot premiums that compound across the footprint.
Assumptions: standard 24×24 footprint, mid-range siding and roofing options.
Add-Ons and Prep Work That Affect the Final Quote
Optional items such as insulation, drywall, windows, extra doors, built-in storage, or a higher-grade door system add to the price. Site prep like leveling, drainage, or additional finishing touches can also affect totals. Bundle upgrades thoughtfully to avoid overbuilding.
Assumptions: no full finished interior walls or climate control beyond basic venting.
Replacement vs New Build: When to Budget Higher
If the project involves tearing down existing structures or relocating utilities, costs rise. New builds without prior structures generally stay lower than full rebuilds, but complex site conditions or unusual foundation requirements push totals upward. Plan for a contingency to cover unforeseen work.
Assumptions: no major environmental constraints or code changes.
How to Compare Quotes for a Detached Double Garage
When evaluating bids, ensure each quote lists materials, labor, permits, and site work separately with explicit unit prices. A clear line-item table helps catch hidden add-ons and verify consistency across contractors. Request a per-square-foot basis where possible to normalize bids.
Assumptions: similar scopes and finish levels across bidders.
Per-Unit and Per-Foot Pricing Details
Pricing can be expressed per square foot or per linear foot for framing and siding, with common ranges including $75–$150 per sq ft for installed detached garages depending on finish and structure quality. A concrete slab typically runs $6–$9 per sq ft for basic pours, with upgrades for reinforced or heated slabs.
Assumptions: 24×24 footprint, moderate finish, standard slab thickness.
| Size | Typical Range |
| 20×20 | $25,000–$40,000 |
| 24×24 | $40,000–$60,000 |
| 28×28 | $60,000–$75,000 |
Assumptions: standard footprint, moderate finishes, typical local materials.
