An access door is an exceptionally versatile piece of construction architecture which comes in a wide variety of varieties to serve various purposes. It can be designed to swing open or closed and can have a handle or latch to operate from either side. Access doors can also allow quick access into an enclosed area behind a solid wall, ceiling, or floor. The term "access door" is often used in association with partitioned areas like computer rooms, where one side of the room may be off limits to the general public.There are many types of access doors available. These can be made of wood, steel, fiberglass, or plastic. They can be fashioned from different materials for different purposes such as for use in homes, business establishments, office spaces, elevators, and storage spaces. Most of these types of doors come with locking systems for extra security against unauthorized entries. Some types are positioned on the ceiling or on the floor near the doorway for easy access.Sliding glass doors are the most common types of access doors. These are often used in areas where it is necessary to have an interior and an exterior door that can both swing to open. It is important to choose the right type of sliding glass door for the space where it will be installed. These should be designed not only for easy opening and closing but also for their visual appeal.Most commercial doors are usually made from insulated doors. These can be made from a variety of materials including wood, steel, and aluminum. However, some of the more popular insulated doors today are those that are made from insulated polystyrene (IP), galvanized steel, and fire-rated access doors. The latter two are more resistant to fire damage than other types of doors because of their thickness and fire-retardant materials.Drywall panels often provide a smooth surface for an access door to rest on. However, not all drywall surfaces are fire-proof, and in some cases an insulated door may be required. In order to keep the energy efficiency of the facility in mind, make sure to check for the insulation used as well as the drywall between the slats of the door. The more insulation a drywall panel has, the better the door will work at insulating heat and keeping the cold air out.For access doors that will be used in areas with very high ceilings, recessed panels may be the best choice. These panels are installed directly into the ceiling space and are very affordable. The advantage of these types of doors is that they do not require drywall panels to be installed; therefore, you do not need to cut out any spaces to create a path for the door.