There are three main material types for a door, namely steel, wood and fiberglass. If you are looking for an entry door, then a steel door is your sure bet. As it is durable and sturdy, it provides safety and security to you and your loved ones. What is more, you can paint it in any color you like so that it matches the exterior of your house. If you prefer classic style doors that would add a luxurious feel to your house, then a wood door is your way to go. Keep in mind though that not only is it costly but it also needs to be maintained from time to time. A fiberglass door offers the golden mean between wood and steel doors. It is not as pricey as a wood door, yet it can be made to look very similar to it while being durable and easy to maintain. All three door types will help you to reduce the cost of utilities in your home.