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How Much Does a Fiberglass Garage Door Cost?

Fiberglass garage doors are usually selected by homeowners who are seeking a strong garage door that is also lightweight. The fiberglass can be created with the appearance of a wood grain to resemble costlier types of garage doors such as wood. Fiberglass garage doors are most often found in homes built during the 1960s and are found in newly built homes as well. The primary draw of fiberglass garage doors, in addition to the wood-like appearance of the material, is its low cost.

The Costs

  • The average minimum cost of fiberglass garage doors is $1,157.
  • The average maximum cost of fiberglass garage doors is $2,030.

The standard size of fiberglass garage door is 9 feet by 7 feet. If the homeowner needs a wider or taller garage door, the cost of the door will be higher. Additional supplies related to the installation of fiberglass doors include mounting hardware and adhesives. These supplies add an average of $130.47 for the installation of each door. Most garage door companies offer installation services for fiberglass garage doors. The average cost per hour for installing this type of garage door is $43.50 and the average installation job takes 3.5 hours to complete. Larger doors require more time to install. If the garage requires any structural modifications, this will add to the materials and labor costs for the project. A garage door opener and its installation are not included in the cost of a fiberglass garage door. Homeowners requiring that an opener be installed will pay additional fees for the opener and labor for the installers.


Fiberglass garage doors can be made in one of two ways. The first way is to soak fibers of glass in a plastic resin to create a solidified fabric. The other way is to impregnate cloth with glass fibers and then soak the material in a bath of resin. Both methods are equally effective and most homeowners will not be able to tell which way the fiberglass of their garage door was made. The resin is a type of plastic that acts as a binder or glue to hold the fabric together. There are several sub-types or grades of fiberglass garage doors. These sub-types include:

  • Single-Layer Fiberglass: This is one layer of fiberglass affixed between steel or aluminum framing to create the panels of the door.
  • Double-Layer Fiberglass: This type of garage door features insulation between the two layers of fiberglass. The insulation helps boost the energy efficiency of the garage, reduces the amount of noise transfer between the indoor and outdoor environment and adds strength to the door.
  • Triple-Layer Fiberglass: There is insulation between each layer of fiberglass. This is the most energy-efficient and strongest type of fiberglass garage door. This is the premium grade of door.

In addition to the different grades of fiberglass garage doors, the doors are available in different styles to suit the size and style of the home. Homeowners can select fiberglass garage doors without windows or with two to 20 windows. The windows may be made of clear, opaque or frosted glass. The glass panels can be oriented vertically or horizontally. The styles of fiberglass garage doors include:

  • Vertical Raised Panels: These may be textured to look like wood.
  • Vertical Slat Panels: The slats lay flush with one another.
  • Horizontal Raised Panels: These panels are typically textured and are often the style used when the garage door includes windows.
  • Horizontal V-hatch Panels: This layout offers enhanced aesthetic appeal and is typically used on garage doors without windows.

There are many companies that manufacture fiberglass garage doors. Many of these companies also act as the installers while other companies certify installers or contract out the installation work. Some of the available brands of fiberglass garage doors include Amarr, C. H. I., Haas, Overhead Garage Door, Wayne Dalton, Genie, Cloplay, Frantz, Raynor and Garador. Most garage door companies have standard sizes in stock although custom sizes and colors may need to be ordered from the manufacturer, resulting in additional wait time for the homeowner.

Advantages & Disadvantages of Fiberglass Garage Doors

Fiberglass is resistant to infestation by termites and can withstand small dents and dings that are obvious on steel or aluminum doors. Homeowners can select from a range of fiberglass colors to coordinate with the exterior of their homes. If the homeowner selects a double-layer or triple-layer fiberglass garage door, the home may have higher energy efficiency compared to using a steel or aluminum garage door. When one panel of a fiberglass garage door is damaged, it can be taken out and replaced instead of removing the entire garage door. Because fiberglass is lightweight, no specialty springs are needed for mounting. Standard garage door openers are sufficient for operating these lightweight doors. Fiberglass garage doors do not require any special maintenance such as sealing or painting. Homeowners can simply use a garden hose to clean off dirt and dust from the door's panels. Fiberglass can resist the effects of corrosion due to moisture and salt exposure, making it an excellent choice for oceanfront properties or areas where road salt is used.

Although fiberglass garage doors are a popular choice due to their low cost and range of style options, there are some disadvantages of selecting this material for a garage door. The panels are easy to break through common accidents such as being hit with a basketball or getting bumped by the bumper of a vehicle. Heavy winds may also damage the panels of a fiberglass garage door. White or light-colored fiberglass garage doors may turn yellow as they age. The panels may also fade when exposed to sunlight over many years. In periods of extremely cold weather, the panels of fiberglass may crack. When standing close to the garage door, it is not difficult to tell that it is fiberglass and not real wood.

Last updated on May 17, 2016

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