A Comprehensive Guide to Fiber Glass Doors
beautiful red fiberglass door

Fiberglass doors are made from high-quality textured fiberglass skin. They offer an excellent finish and energy-saving insulation. You also have a choice to include moldings or glass. Finding the right fiberglass door requires a little research. This guide will make it easier for you to choose the right fiberglass door.

Things to Consider Before Choosing the Right Fiberglass Door for Your House

Slab Vs. Pre-hung

Attaching hinges and drilling holes is required before you can hang a slab on an existing jamb. Whereas, pre-hung doors already come attached with hinges, a weather-stripping system, and a threshold. You can also find pre-hung doors with factory-installed latches and locks. All you are required to do is trim the door according to your required size.


When it comes to durability, fiberglass doors are a great option. They can last for 20 years in pristine condition if taken care of. Some manufacturers also offer a 3-year warranty with them. While the other also provide extended warranties for ten years, 20 years, or even a lifetime.

Fiberglass Doors Pros and Cons

blue fiberglass doors in series


Stable – These doors are incredibly durable and don’t get affected by the cold or water, so there’s no risk of swelling or shrinking.

Energy-efficient – The energy efficiency of wood is about R-2, whereas fiberglass is rated as R-6. The insulating foam inside the fiberglass highly contributes to this. In terms of energy efficiency, fiberglass doors are excellent insulators.

Low Maintenance – When it comes to maintenance, these doors just need to be wiped with a damp cloth once in a while. Moreover, their finish doesn’t fade with time.


Prone to Cracking – Even though the fiberglass used to make these doors is strong, it has its limitations. A sudden impact can shatter it.

Sizing and Fitting Issues – some fiberglass doors don’t fit in non-square openings. To avoid any problem, know the shape of the opening and measure it too.

If you need professional advice before coming to a decision, feel free to consult the experts at Darkinson Doors. Our team specializes in manufacturing doors for residential and commercial properties. Reach out to us for multiple products options, including customized garage doors, steel doors, and High Speed Fabric Door Toledo.

Contact us for further information.


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