Garage Cost Calculator
Estimate garage construction cost for attached or detached garages.
Garage Cost Calculator
What This Calculator Does
The Garage Cost Calculator estimates the cost of building a new detached garage based on size, construction type, and 2026 US national average contractor rates. Enter the garage dimensions and select the type to get a cost range.
A detached garage is one of the most cost-effective ways to add covered parking and storage to your property. Costs vary significantly based on whether you choose a basic stick-built structure, a prefab garage package, or a fully finished garage with living space above.
How to Use
- Select the garage type - 1-car (12x20 ft), 2-car (22x22 ft), or 3-car (30x24 ft) standard sizes.
- Select the construction type - basic (stick-built, standard finish) or premium (finished interior, insulated).
- Choose whether you want a single or double garage door.
- Click "Calculate" to see the total cost estimate.
- Add $2,000-$5,000 for foundation work if not included in the base estimate.
Reference Table
| Garage Size | Square Feet | Basic Build | Finished Interior | Prefab Kit (materials) |
|---|---|---|---|---|
| 1-car (12x20) | 240 | $15K-$28K | $22K-$38K | $5K-$12K |
| 2-car (22x22) | 484 | $25K-$50K | $35K-$65K | $8K-$18K |
| 3-car (30x24) | 720 | $38K-$75K | $55K-$95K | $12K-$25K |
Related Calculators
Concrete Slab Cost Calculator
Estimate concrete slab cost per square foot for patios and floors.
Framing Calculator
Calculate studs, plates, and headers needed for wall framing.
Shed Cost Calculator
Estimate shed construction or purchase cost by size and type.
Home Addition Cost Calculator
Estimate room addition cost per square foot.
Frequently Asked Questions
💰 Cost Estimators
Explore all 26 cost estimators