According to Merriam-Webster.com, a door is defined as “a usually swinging or sliding barrier by which an entry is closed and opened”. Doors allow access within structures and a passage to the outside. Doors serve as architectural elements in most structures as well as provide security, conceal spaces, prohibit air and sound and allow light to enter a room. There are many door types for both interior and exterior specific purposes.
One type of exterior door is the screen door which hangs on the outside of solid exterior doors. The interior solid door opens and the screen door gives way for the air to flow through while preventing pests and any substances from entering the room during warm weather.
Slab doors are designed from a rectangular piece of metal, wood or composite materials, which are available in various standard dimensions. It can be sold without hardware or hinges. A slab door can be inset panels with the same projection as the outside frame with the edges of the panel cut at an angle. It can also be flush with no raised or recessed surfaces. Also slab doors can be recessed or flat panel with lower than the outside frame.
Pocket doors are commonly used in tiny rooms where there is a premium or contemporary spaces to open up a floor plan and give “no door” illusion. These types of door are made of solid or glass which is usually used as interior doors. Some pocket doors are used as certain sliding glass patio doors. Large wood or metal pocket doors are seen in commercial and loft residential spaces functioned as exterior doors.
Sliding Patio Door:
A Sliding patio door is a panel door that glides horizontally in lower and upper tracks. It consists of two to four large glass panels. This type of patio door is commonly used for easy access going out to a patio, pool or any outdoor spaces. Each panel used on rollers for ease of operation. There are modern sliding glass patio doors that are made with low energy consumption and double-pane glass. There are even manufactured with argon gas injected between the panes to increase energy insulation and efficiency.
Bi-fold and Bypass Doors:
Bi-fold and bypass doors are space-saving coverings. These types of door are made from hinged leaves that glide along an upper track, which folds onto one another when open. Bi-fold doors can be opened to one side and can be folded back to each side in the center opening. While the Bypass doors also consist of 2 rigid doors that are louvered, flush, flat panel or even mirrored. Both doors are designed primarily for utility rooms, closets and other small storage areas that cannot accommodate a traditional hinged door.