The cost to build a 2-car garage is one of the most searched construction cost topics in the U.S. This guide breaks down materials, labor, sizes, foundations, and finishing so contractors and homeowners can estimate accurately in 2025.

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1. Average Cost to Build a 2-Car Garage (National Estimates)

Build Type	Typical Cost
Basic 2-car garage	$19,000 – $28,000
Standard finished garage	$26,000 – $38,000
High-end custom garage	$40,000 – $70,000+

The national average cost is $27,000 to $33,000 depending on size, materials, and interior finish.

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2. Common 2-Car Garage Sizes (Most searched dimensions)

Size	Total Sq Ft	Best Use
20 x 20	400 sq ft	Compact fit for 2 small cars
20 x 22	440 sq ft	Most popular choice
24 x 24	576 sq ft	Extra storage + truck friendly
24 x 30	720 sq ft	Workshop + 2 vehicles

The most searched and commonly built size is 24 x 24 (576 sq ft).

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3. Cost Per Square Foot to Build a Garage

Build Level	Cost per Sq Ft
Basic structure	$45 – $65
Standard build	$65 – $85
Custom / high end	$90 – $130

Example: 576 sq ft × $70 = $40,320 (standard build estimate)

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4. Foundation Cost (Concrete Slab or Stem Wall)

Foundation Type	Avg Cost
4” concrete slab	$4.50 – $7.50 per sq ft
6” reinforced slab	$6.50 – $9.50 per sq ft
Frost-wall / stem wall	$7,000 – $13,000

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5. Framing, Roof, and Exterior Cost Averages

Component	Typical Price
Wood framing	$4 – $7 per sq ft
Roof trusses + install	$3,000 – $7,500
Asphalt shingles	$1,800 – $4,000
Vinyl siding	$2 – $6 per sq ft
Brick veneer (optional)	$8 – $14 per sq ft

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6. Garage Door, Electrical & Plumbing

Feature	Cost
2-car garage door + opener	$1,200 – $3,000
Electrical wiring + lights	$1,000 – $2,800
EV charging outlet	$400 – $1,400
Plumbing (optional)	$1,000 – $3,500

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7. Insulation & Interior Finishing

Interior Option	Cost
Insulation	$1,200 – $2,600
Drywall + finish	$1.50 – $3.50 per sq ft
Epoxy floor coating	$4 – $8 per sq ft
Painting	$600 – $1,800

Fully finished garages can add $6,000 – $15,000 to the total.

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8. Example Full Estimate (24 x 24 Standard Build)

Item	Est Cost
Slab foundation	$3,200 – $5,200
Framing	$3,000 – $4,200
Roof + shingles	$4,000 – $6,000
Garage door + opener	$1,500 – $2,500
Electrical	$1,200 – $2,000
Insulation + drywall	$4,000 – $6,500
Paint + finishing	$1,000 – $2,000
Estimated Total	$26,000 – $36,000

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10. Ways to Reduce Garage Construction Cost

• Choose asphalt shingles over premium roofing
• Use 4” slab unless heavy vehicles require 6”
• Keep plumbing minimal or optional
• Use standard size windows and doors
• Build during off-season for lower labor demand
• Purchase materials in contractor bulk pricing

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Final Takeaway

A 2-car garage costs $19,000 to $38,000 for most builds, with 24×24 garages averaging $26k – $36k fully completed. Costs vary based on foundation, finishes, siding, and interior upgrades.