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Most houses have several different kinds of exterior and interior doors. Exterior doors are far sturdier than interior doors because they need to be weather tight and provide security for the house. Many are also more decorative than most interior doors, to make a stunning first impression. Typical exterior doors include front entry doors, back doors, French doors, Dutch doors, sliding glass doors, and patio doors.
A door’s function determines the materials from which it is made, how it looks, and how it operates. For example, a door that provides security will be made from heavy materials and have durable, effective locks and hinges. A door that lets in light or looks out onto the yard, such as a French door, will have glass "lights" (multiple panes) or, like a sliding door, be made almost completely of glass.
French doors and sliding doors are examples of the two primary ways doors open. French doors swing on hinges; sliding doors glide along a track. Some doors, such as Dutch doors, have tops and bottoms that swing open independently.
Most doors are made of wood or materials made to look like wood. Even fiberglass composite and steel doors often have polymer or vinyl coatings embossed with wood grain; some even have cellulose-based coatings that can be stained like wood doors. Wood doors are made from every kind of wood imaginable, hardwoods being the most durable and elegant. Wood doors insulate better than glass; composite and steel doors provide even more insulation and better security than wood.
Energy Efficient Doors
When buying glass doors, opt for high-performance glazing and integrated weatherstripping if you live in a cold-winter climate.
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