Nowadays, I find that traditional solid wood doors are slowly being replaced by more durable doors such as fiberglass exterior doors and metal doors. But personally I find doors made of fiberglass or metal more appealing than wooden doors. Despite them being more expensive than the usual wooden door, they last longer and offer many advantages to your home. Furthermore, steel or metal and fiberglass doors will not deteriorate due to varying weather conditions. If you want to purchase a new door but can’t decide whether to go for steel or fiberglass, here is a comparison of both doors to help you decide the best one for your needs.

Construction Of Doors

Both doors are constructed to be sturdy. Steel doors are made of a honey-combed, resinous core or Styrofoam core wrapped around by multiple sheets of metal. These doors can easily be identified through their thickness. Lower gauges of steel doors tend to be more durable because they are thicker. Fiberglass, on the other hand, is made of one huge material instead of having a core and being wrapped around with glass. Exterior fiberglass doors are made of very thin sheets of glass bonded together by binders or resin. It is up to you to choose whether you want a solid piece of material or exterior entry doors made of sheets of materials.


Generally, I find steel doors to be cheap compared to fiberglass doors. But I would suggest you consider the lifespan of each material first before deciding. Fiberglass doors are definitely more durable and will last longer than steel doors. Fiberglass doors exterior will also need fewer repairs and maintenance than steel doors. Therefore, when it comes to the overall cost you will incur over a long period of time, fiberglass doors will definitely come out cheaper. However, when it comes to lower quality versions of both doors, fiberglass will tend to be more fragile and vulnerable than steel doors.


Both materials for exterior entrance doors offer multiple and different benefits each. Fiberglass doors will hardly scratch or bend overtime. They are also most of the time equipped with wood grains to make them resemble wooden doors which are still preferred by many homeowners as these doors come without the problems wooden doors bring. Most fiberglass exterior entry doors also come with an integral color, so painting, staining and other finishing materials aren’t required anymore. Steel doors, on the other hand, are definitely more affordable than fiberglass and will allow you to save money initially. It is also more durable than wood because it won’t easily deteriorate due to varying weather conditions. It also offers high levels of insulation which is great for colder regions, especially if the core is made of foam.

Steel Vs. Fiberglass

Overall, it will all depend on which properties and characteristics of doors you want to have in your home. If you want more durability and lower maintenance costs, exterior doors fiberglass are definitely a great option. However, if you don’t want to spend too much money but still want a durable door, exterior metal doors are also a great idea.

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