14' Wide Garage Plans Check out the diverse collection of 14' wide garage plans by Behm Design. Whether you’re making room for household items or creating extra activity space, these garages will fit your needs. 14' has long been considered an ideal 1 car garage width. With a 6'-9" wide car centered in the space there is about 39" of side space for car door opening. This is plenty for most situations. The 12' wide garages work, as well, but can be too narrow for cars with wide swinging doors. The 14' wide garages have been our most popular of the single-car garage designs. These are available in several depths which offer from minimal up to a lot of extra space in the back end of the garage - great for storage, hobby and other use. Many residential lots have plenty of depth and limited width, for which these plans are well-suited.