Active leaf
The door on a double door set that is the first to be opened.
Cavity
A type of masonry wall construction in which a continuous air space or cavity is provided inside the wall
CE Marking
Manufacturer’s declaration that the product complies with European health, safety and environmental regulations.
Cylinder
Dog Bolts
Escape handle
Euro Profile Cylinder
A cylinder lock mechanism using a cam actuator.
External access
Facade
Main or front elevation of a building.
Fire Rating
Having been tested in accordance with BS EN 1634-1: 2008, and given classification reflecting the resistance achieved in time.
Handling
Which side the door is hung (hinged), as viewed with the door opening towards you (see diagram below).
![Right hand hung/Outward opening](https://9265979a.rocketcdn.me/wp-content/uploads/2016/08/1rightout.gif)
Right hand hung/Outward opening
![Left hand hung/Outward opening](https://9265979a.rocketcdn.me/wp-content/uploads/2016/08/2leftout.gif)
Left hand hung/Outward opening
![Left hand hung/Inward opening](https://9265979a.rocketcdn.me/wp-content/uploads/2016/08/3leftin.gif)
Left hand hung/Inward opening
![Right hand hung/Inward opening](https://9265979a.rocketcdn.me/wp-content/uploads/2016/08/4rightin.gif)
Right hand hung/Inward opening
Kick Plate
A section stainless typically fix to the bottom of a door leaf to stop damage when item hit the leaf.
Leading edge
Leaf Selector
Fixed at the centre of the header this allows double doors to latch in the correct sequence (i.e. passive leaf first, then the active leaf).
Leaf & Half
Double security doors with the active leaf wider than the passive leaf.
Louvre
Door, bifold or shutter constructed with a series of downward-sloping, horizontal slats that allow ventilation, inhibit sunlight, and provide some privacy.
Loss Prevention Certification Board
Lug
Extension of the stiles beyond the meeting rails of a sash, usually ogee-shaped and sawed ornamentally on the inside of the stile.
Maglock
Electrically operated magnetic lock, usually operated remotely or by local permission switch or break glass unit.
Master Keying
A system of keying cylinders so that one master key will operate all of them, secondary keys will operate only certain groups of them, and other keys will operate only certain individual cylinders.
Master Keying
Is a type of lock that is installed into a pocket, manufactured into the door.
Deadbolt
A bolt that is operated in both directions by a key, handle or thumbturn.
Latch
A self-engaging element of the lock that secures the door when engaged with the keep, and can be released by hand. Latches can be deadlocked so that when the lock mechanism is engaged, the latch cannot be withdrawn
Sashlock
A lock mechanism incorporating both a latch and deadbolt feature. Sashlocks can be key operated with a lever mechanism or cylinder operated and can incorporate thumbturns for keyless egress applications. Typically used with a lever handle set.
Deadlock
A lock mechanism incorporating a deadbolt only. Deadlocks can be operated with a lever mechanism or cylinder operated and can incorporate thumbturns for keyless egress applications.
Keeps/ Strikes
The element of the lock system that is fitted to the fixed portion of the door frame, into which the moving part of the lock (e.g. bolt) engages when in the locked position.
Mullion
A member within a frame, separating either doors, a door and sidelights, glazed areas or side panels. A mullion between two doors of a pair may be either fixed or removable.
Outward opening
Overpanel
A door configuration which contains and extension of the product above the door transom/ head.
Panic bar
Powder Coating
Polyester powder coated finish to a steel door.
Push Plate
A stainless steel rectangular trim mounted to push open a security door.
Push pad
Pull Handle
A handle or grip designed for attachment to a door to facilitate opening and closing.
RAL or BS Number
An internationally recognised system of paint coding to promote colour conformity and systematic finishing.
Security rated
Structural Opening
The size of an opening in a wall or facade where a door will be installed.
Sliding Door
Door which slides in a horizontal direction parallel to a wall of the structure.
Sidepanel
A door configuration which contains and extension of the product to either side of the doorset.
Threshold
A raised member at the floor extending between the jambs of a frame.
Thumb Turn
A permanently attached small lever which, when turned, operates the bolt on a lock in the same manner as a key.
Two point locking
A bolting system which secures the leaf into the frame in two places, normally top and bottom on the leading edge. Auto bolting systems include catches and triggers to automatically re-secure in these places when the door is closed, without manually resetting the device.
Tolerance
Permissible deviation from a nominal or specified dimension or value.
Two point locking
A bolting system which secures the leaf into the frame in two places, normally top and bottom on the leading edge. Auto bolting systems include catches and triggers to automatically re-secure in these places when the door is closed, without manually resetting the device.
Uncertified
A door configuration containing elements outside the scope of the certification.
Upstand
A structure formed to allow the doorset to sit on.
Vision Panel
A section of glass to allow you to see through the door.
Ventilation Panel
A section of Louvred panel to allow air movement through the doorset.
Weatherstrip
Material applied to the edges of a door or to the inner edges of its frame to close the clearance opening and minimize or restrict the passage of air, moisture, sound, smoke, and/or dirt.
United Kingdom Accreditation Service
Assesses organisations against international standards for testing, inspecting, certification and calibration.