Free garage build estimator
What will it cost to build a garage?
Enter your garage size, type, and finish level for an estimate built from current 2026 construction costs — per square foot and total.
What drives garage construction cost
These factors move a garage quote the most.
Attached vs. detached
Detached garages need their own four walls, roof, and utility trenching, pushing per-square-foot cost above attached builds.
Foundation & site work
A concrete slab, grading, and drainage are significant fixed costs regardless of garage size.
Finish level
A bare shell is cheapest; insulation, drywall, electric, and openers add 15–25%; plumbing or living space above adds much more.
Doors & openings
Garage doors, openers, and extra windows or entry doors each add real line items.
Garage cost by size (built, typical range)
Typical 2026 build ranges, attached, basic-to-finished.
| Size | Sq ft | Typical cost | Notes |
|---|
| 1-car | ~260 | $12,000–$28,000 | Tight but functional |
| 2-car | ~575 | $26,000–$62,000 | The standard build |
| 3-car | ~860 | $39,000–$93,000 | Storage or workshop space |
Planning a DIY job?
Common materials and tools for this project. (Affiliate links — we may earn a commission at no cost to you.)
Garage cost questions, answered
How much does it cost to build a garage in 2026?
Most garages run $45 to $110 per square foot, so a standard 2-car garage (about 575 sq ft) typically costs $26,000 to $63,000 depending on type and finish. Detached garages cost more per foot than attached.
Is an attached or detached garage cheaper?
Attached is usually cheaper because it shares a wall and existing utilities with the house. Detached costs more per square foot (its own four walls, roof, and utility runs) but adds flexibility and can be sited anywhere on the lot.
Does building a garage add home value?
Yes — garages consistently rank among the additions buyers pay for, especially in cold climates and markets where covered parking is scarce. Recouping 60–80% of cost at resale is a reasonable expectation.
Do I need a permit to build a garage?
Almost always. A garage is a structure with foundation, framing, and usually electrical — expect permits, inspections, and possibly setback rules from your lot lines. Budget for plans and permit fees.