If you love the look of wood but want a lower-maintenance option, an exterior fiberglass door is a good balance between both natural wood and steel. Fiberglass protects against the elements but will not rust or mould and is resistant to dents and scratches. More Vancouver homes are using Fiberglass on their exterior doors for its weather-resistant qualities and increased energy efficiency. This material is very light, yet secure, and usually lasts more than twenty years with little-to-no maintenance.