Before you are being introduced to any products you should understand why some items of hardware are handed. This means that certain products will not suit all doors or windows and below are intended to help you know which products may be handed and how to determine the correct one.

Fire-resisting doors are usually required to be self-closing, in accordance with building regulations. (other than those to locked cupboards, service ducts, and internal doors in flats and dwelling houses)

Door design considerations mainly as below:1, Where the building and inner door located2, Direction of the flow of people in the building3, Number of people the building expecting4, It is a fire resistant and heat insulated door Main concern points for this configuration are:1, Safety Door opening

Surface mounted door closers are the most efficient and economical means of controlling doors and are thus, the most commonly used type of closers. But, because they are exposed to view, there are some installations where a concealed door closer better suits the needs of the owners and users. On exterior openings, surface door closers should always be installed on the interior side of the openings to protect the closers from fluctuations in temperature. On interior openings, good practice dictates that surface door closers be installed on the room side of the openings, out of the corridor.

A ​door closer is an adjustable and spring-loaded mechanical arm that closes a door automatically after it has been opened. Door closers are usually filled with hydraulic fluid, which dampens the door swing and controls its operation. Installing a door closer adds a level of control to your door's safety and security.

we learn about the factors, steps and Successive sequence of door scheduling. Now we continue to learn to choose Door Scheduling.