Garage Square Footage Calculator

Typical garage sizes and their square footage, plus a calculator for your own garage floor, for epoxy, flooring, a new slab or insulation.

    $
    Total area
    – sq ft
    Square yards–
    Square meters–
    Acres–
    Estimated cost–

    Measure each rectangle separately and add them up. Tick “subtract” for things that aren’t covered, like a kitchen island.

    Typical garage sizes

    GarageDimensionsSquare feet
    1-car (small)12 × 20 ft240
    1-car (typical)14 × 22 ft308
    2-car (small)20 × 20 ft400
    2-car (typical)22 × 22 ft484
    2-car (roomy)24 × 24 ft576
    3-car32 × 22 ft704
    3-car (roomy)36 × 24 ft864

    Sizes vary by builder; measure your own for orders.

    Frequently asked questions

    What is the square footage of a 2 car garage?

    Most 2-car garages are between 20 × 20 ft (400 sq ft) and 24 × 24 ft (576 sq ft); 22 × 22 ft (484 sq ft) is very common.

    How big is a 3 car garage?

    Typically about 32 × 22 ft (704 sq ft) up to 36 × 24 ft (864 sq ft) or more, depending on storage and workshop space.

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