Steel vs Fiberglass Exterior Doors: Which is Best?

Not sure whether to choose a steel or fiberglass exterior door for your home? Get the pros and cons of both types of doors to help you make the best decision for your home.

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There are many things to consider when choosing an exterior door for your home. Two of the most popular choices are steel and fiberglass doors. But which one is best?

To help you decide, we’ve put together a quick comparison of steel vs fiberglass exterior doors. Read on to learn about the pros and cons of each type of door, so you can choose the best option for your home.

Steel Exterior Doors

When it comes to choosing an exterior door for your home, you have two main options: steel or fiberglass. Both materials have their own advantages and disadvantages, so it’s important to know what to expect from each before making a decision. Steel doors are known for their strength and durability, while fiberglass doors are more energy-efficient.

Advantages of Steel Doors

Steel doors offer several advantages over fiberglass doors. They are more durable, provide better security, and are more energy efficient.

Steel doors are made of a stronger material than fiberglass doors, so they are more resistant to damage. They won’t dent or warp like fiberglass doors can, and they’re also less likely to crack or break. This makes them a better choice for high-traffic areas or homes in areas with severe weather conditions.

Steel doors are also more secure than fiberglass doors. They’re more difficult to break into, and they provide a higher level of protection against forced entry. This makes them a good choice for homes in high-crime areas or for people who are concerned about home security.

Finally, steel doors are more energy efficient than fiberglass doors. They provide better insulation against heat and cold, so they can help keep your home comfortable all year round. This can save you money on your energy bills and make your home more comfortable to live in.

Disadvantages of Steel Doors

While steel doors have many advantages, there are a few potential disadvantages to consider as well:

1. They can dent: While steel doors are very tough, they can dent if hit hard enough. This is more of a cosmetic issue than anything else, but it is something to keep in mind.

2. They can rust: If your steel door is not properly finished or sealed, it can rust over time. This will not only affect the appearance of your door, but it can also weaken the overall structure.

3. They are not always fireproof: While steel doors are often fire-rated, this is not always the case. Be sure to check the fire rating of any steel door you are considering for your home.

Fiberglass Exterior Doors

Fiberglass exterior doors are a great option if you are looking for a durable and low-maintenance door. Fiberglass doors are also energy-efficient and can help you save on your energy bill. They are also available in a variety of styles and colors to match your home’s aesthetic.

Advantages of Fiberglass Doors

Fiberglass exterior doors offer many advantages over steel doors. Fiberglass is a stronger material than steel, so fiberglass doors are more resistant to warping and denting. They are also less likely to show scratches and other wear and tear. Fiberglass doors can be made to resemble wood grain, so they have the same aesthetic appeal as wood doors but without the high price tag.

Disadvantages of Fiberglass Doors

Fiberglass doors can dent and ding more easily than steel, so if you live in an area susceptible to severe weather or where soccer balls and hockey pucks are a common lawn ornament, steel might be the better choice. Also, fiberglass doors can be more expensive than steel doors.


There is no definitive answer when it comes to choosing between steel and fiberglass exterior doors. Both materials have their own advantages and disadvantages that must be considered carefully before making a decision. Ultimately, the best choice for your home will depend on your specific needs and preferences. If you are looking for an energy-efficient door with a modern look, fiberglass may be the better option. If you need a durable door that can withstand extreme weather conditions, steel may be the better choice.

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