Garage doors are some of the most prominent features of home exteriors. Up and down your street youโ€™ll see houses with garage doors, which are not all one and the same. The door must fit the garage opening precisely. Therefore, many size options exist.


From 1896, when Henry Ford built the first โ€œhorseless carriageโ€, through the 20th century, the concept of the garage expanded as homes increased in size. Today, homeowners may have two, three, or more vehicles.

Standard Sizes

For most vehicles, a garage door from 8 to 20 feet wide will suffice. Single-car garages typically have a door thatโ€™s 9 feet wide and 7 feet high. Custom heights of 8 feet or more are available for trucks, snowplows, or tractors.

The most common standard sizes include:

  • Single Car Garage Doors: Usually have the 8 x 7-foot dimensions, which is enough for a standard, full-size car. Custom sizing is often available from manufactures for homeowners with SUVs, vans, or trucks.
  • Double Car Garage Doors: If you have a larger vehicle, or more than one car, a two-car garage door is typically 16 feet wide; heights can range from 7 to 10 feet to accommodate lifted vehicles or roof racks.
  • Triple Car Garage Doors: Homeowners with three vehicles or more may choose to install a double door and an extra single door, three single doors, or a custom-designed triple-sized door that can accommodate cars, all-terrain vehicles, or boats.

Custom-designed, oversized garage doors can be made even larger. They may be found in facilities housing recreational vehicles or be a part of larger commercial structures. These custom garage doors can be as large as 32 x 24 feet. There are even residential applications for custom garage doors, such as houses that must accommodate motorhomes, which are about 10-feet high on average.

Garage Door Thickness

The thickness of a garage door affects both economics and quality. For example, a 1/8-inch-thick steel garage door is more affordable to install, although its panels are stamped out of thin metal and the unit provides almost no insulation. An insulated garage door is thicker to accommodate ยผ to ยฝ inch foam insulation layers; some foam insulating materials are 1 to 1ยฝ inches thick. Skimping on garage door thickness can lead to higher energy costs, as garage door size can have an impact on immediate and future efficiency and expenses.

What Do I Need to Know When Replacing My Garage Door?

Whenever you add or replace a garage door, you need to measure the width and height of the opening. You must account for the size of the door and the clearance above it to account for door tracks and other features. There must be room for all garage door system components to fit. A professional installer can determine exact sizing to help you select a garage door suited for your home.

Can a Garage Door Size Be Changed?

If youโ€™re not keen on building a completely new garage, you may choose to reduce the size of the opening, which is easier than increasing the garage doorโ€™s size. However, itโ€™s more common for homeowners to consider increasing the size of their door to accommodate larger vehicles. This can create issues with headroom, which can be resolved only by increasing roof height. It also does not ensure youโ€™ll have more usable space in the garage.

For help sizing your garage door, or to obtain a free estimate, contact Precision Door Service of Las Vegas at 877-301-7474 or request an appointment online.

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