Wood vs. Fiberglass Door: Which is Better?

If you’re looking for a new front door or any kind of exterior door, fiberglass and wood doors are two of the most popular, high-quality door materials on the market. But how can you decide which one is best? We’ll break down the pros and cons of wood vs. fiberglass doors and help you make the right choice. 

Comparing Wood vs. Fiberglass Doors

Fiberglass and wood are both very popular door options. In general, if you’re looking for something that’s energy efficient, exceptionally secure, and endlessly durable, a fiberglass door might be better for you. Oppositely, if you prefer classic character and charm, love a natural look, and want something that will last years to come, a wood door might be the best option for you

If you need to weigh your options and figure out what kind of new entry door is right for you, we’re here to help. We’ll compare wood vs. fiberglass exterior doors and show you what makes each option unique. 

Exterior Wood Doors

Energy Efficiency

Although wooden doors are a beautiful and classic entryway option, they’re the least energy-efficient choice. Wood does not provide adequate insulation, and it absorbs heat more quickly than other materials. Plus, it contributes to heat flow, allowing outside temperatures to seep into your home. 

If you need to make your natural wood door more energy efficient, you can add caulking, weatherstripping, or install a storm door as an extra barrier. 

Safety and Security

Solid wood doors are considered just as secure as other types of exterior doors. When it comes to top-notch safety and security of your home, the key is to invest in high-quality deadbolt locks. 

Durability and Maintenance

In most cases, real wood doors are durable but require more regular maintenance than fiberglass doors. Wooden doors are painted or stained or have a specific finish that will wear down over time and must be reapplied. The more often your door is exposed to natural elements, such as direct sun or rain, the more frequently you’ll have to renew the finish. 


It’s hard to compare any exterior door material to genuine hardwood doors when it comes to style and appearance. Modern fiberglass doors can be built to resemble wood, but you’ll know the difference. Also, since you can choose from various colors of wood stains and paints, it’s easy to compliment any style of home – from farmhouse to contemporary. 

Exterior Fiber-Glass Doors


Fiberglass exterior doors are far more energy efficient than wood exterior doors. Fiberglass has a higher thermal resistance since they’re manufactured with a solid polyurethane foam core that insulates the door against extreme temperatures. In fact, a solid fiberglass door has five times the insulating value than that of an equally-sized wood door.  

Safety and Security

We know that keeping your family safe is one of your top priorities, so you’ll be happy to know that fiberglass entry doors offer excellent protection. Since fiberglass is exceptionally durable, it won’t become weakened from rot or rusted-out areas, making it less susceptible to damage. That said, always invest in premium locks and door hardware for optimal safety. 

Durability and Maintenance

In most cases, fiberglass entry doors require little to no maintenance. They can last years without needing any adjustments, repairs, or repainting. Fiberglass materials can even resist the effects of harsh weather without splitting, peeling, shrinking, or warping. Compared to other exterior door materials, fiberglass doors require the least amount of maintenance and only require soap and water for cleaning. 


Fiberglass doors come in an array of dazzling styles and colors. You can choose from finishes that mimic a wood door’s look without paying the price. Plus, opt to incorporate windows on the door to obtain a more airy feeling and let natural light stream into your home. 

Exterior Doors From Standard Supply & Lumber

Compare wood vs. fiberglass exterior doors and decide the best option for you. Then, whether you’ve decided on wood, fiberglass, or even fiberglass that looks like wood, Standard Supply & Lumber has the beautiful exterior doors you’re looking for from top names like ThermaTru. Get more information or see our full collection online or in stores.