Quick Answer
For Many Two-Car Projects, Start with 24×24
A 24×24 garage is often one of the strongest starting points for homeowners who want a useful detached two-car layout without jumping straight into larger footprints.
When Larger Sizes Make Sense
Consider a Larger Footprint If You Need More
24×30, 24×36, or 30×40 sizes can make sense when you want more storage, workshop space, or future flexibility.
More Ways to Compare Garage Sizes