Most are mot big enough and most are around 24x22. A much better size for a 2 car garage is 30x28.
The standard width of a double car garage is 20.5 feet. That is a big enough size to fit a large sedan and a truck inside.
A standard 2 car garage is 24 ft x 24 ft. So you would double that for a four car garage.
Normal width of a single car garage is 8' feet. Normal width of a double car garage is 16' feet. These answers are for doors typically found in the USA.
What is average size of two car garage?
it depends on how big your garage is...
It depends. Some people only have one or two cars in their collector's garage while others will have over 10 or 20 cars in their collection.
The average with of an one car garage is 12 feet. Many people will want a few extra feet of width for storage.
Big enough to close the door.
The standard double car garage door is 16' wide x 7' high. A two car garage should typically be a minimum of 20' wide (inside) to allow the doors to open. 22' to 24' width is preferred.
Those dimensions would correspond to a two-car garage.
20 feet
Average, 24' + 30'