See “Hospital Stop”.
A portion of a door frame adjacent to the door opening prepared for glass or ceramic glazing. In some cases the “sidelight” portion of the frame may contain a door panel or other material.
The side of an opening that requires a key, card reader, or controlled access authority to open the door
A document prepared by material suppliers that clearly lists each opening and the materials being supplied for that opening. The shop drawing is reviewed by the contractor and architect for compliance with the plans and specifications. The contractor also uses the approved shop drawings to determine framing requirements, installation requirements and job scheduling. Shop drawings are often supplied with product submittal sheets to provide a clear description of the materials being supplied by the sub-contractor.
A piece of 18 ga. insert material formed similar to a mullion insert that is anchored to the floor. The sidelight sill slips over the sill channel and is anchored to the channel.
Sill – Door Opening
The bottom treatment of a door opening, usually a threshold and/or a door bottom. The sill is part of the sealing system for an opening if required.
Sill – Sidelight, Borrowed Light Frame
The portion of a sidelight or borrowed light frame running parallel to the floor at the bottom of the frame.
A door that only swings in one direction out of an opening and rests against the stop on the door frame when closed.
A door frame with a profile showing only one rabbet with the stop extending to the opposite face of the frame.
A term referring to a frame with only one door.
A door hung on rollers that roll along a track at the head. This may be a single sliding door, a pair of doors (see “Bi-pass Door”) or multiple doors in multiple tracks in the same opening.
Smoke Control Door/Frame
A fire rated assembly (20 min.) of door frame and hardware with fire rated perimeter sealant to prevent smoke from travelling through the opening when the door is in the closed position.
Smoke Gasket (Smoke Seal)
Any approved sealant substance used to seal an opening to prevent the passage of smoke from one side to the other when the door is in the closed position.
A sealing material used to fill the gap between a door and frame that has been tested and proven to be an effective component to reduce the travel of sound from one side of the opening to the other.
A piece of metal, usually stainless steel placed at the bottom of a door frame to facilitate easy cleaning.
A volume of documents that clearly defines the extent of a contract between a contractor and the building owner’s representative. The specifications explain all the terms of the contract and continue with the acceptable products, applications, performance and warranties.
A connection of two pieces of material of identical shape to form one continuous run.
A door frame with a profile that consists of two parts that can be adjusted for various wall conditions or be separated if it the door unit is to be pre-hung.
The joining of two pieces of metal in a specific location using the heat generated by electrical resistance to melt the metal and form the weld. Copper contacts firmly clamp the material at the spot of the weld.
One or two light gauge steel angles welded to the bottom of a welded hollow metal frame to support the frame and prevent wracking during shipment. Shipping spreader bars are not intended to be used as a reference and must be removed prior to installing the frame. A separate template board is used to maintain door width when plumbing and leveling the frame.
A hinge that has a spring assembly in the barrel for closing the door. As the door is opened, the spring is wound creating the tension necessary to close the door. Spring hinges are adjustable for spring power but have no other adjustment for back check, latching speed or adjustable opening and closing force. Spring hinges are not designed as load bearing hinges and should be used at only the middle or bottom hinge locations on a door.
A door’s vertical edge that has not been beveled and is exactly at 90º from the door faces. Also called a “book” edge when the door is full width (not nominal) width.
STC (Sound Transmission Coefficient) Rating
A value given to a part of a building’s interior structure based on measurement of the structure’s ability to reduce the passage of sound from one side of the structure to another. The structure may be a wall, a door and frame unit or a glazed unit. The higher the STC rating, the less sound is transmitted from one side of the structure to the other.
A component commonly used in buildings as a framework for walls and partitions. Steel studs vary in gage of metal from 20 ga. to 24 ga. and in width from 2” up to 12”. Steel studs are used as the framework to attach other wall components for structural, sound or blocking. Once wall materials are in place, the wall is covered with drywall board.
Steel Stud Anchor
A piece of formed steel used to attached a welded or knocked down hollow metal masonry frame to the steel stud framework prior to the application of drywall.
Steel Stud Track
A component in steel stud framing with an inside dimension the same as the outside dimension of a steel stud. Steel stud track sections are used when horizontal members are required because the studs, running vertically, will nest easily inside the track and can be fastened with a screw. Because track sections are normally 1/8″ wider than stud sections, the actual wall thickness of a steel stud partition is a minimum of 1/8″ wider than the stud dimension.
Lengths of jamb, insert or assembled mullions supplied in 10’1″ or 12’1″ lengths to be used by dealers with fabrication shops when building frames, sidelights and borrowed lights in their shop.
A piece of formed steel used on the inside of certain types of hollow metal doors to maintain rigidity and uniform thickness.
The vertical portion of a stile and rail door (either wood, fiberglass or metal) that is clearly shown as a separate piece. In some cases, the stiles are approximately 4” – 6” but many vary depending on the style of door. In some cases, the stile width limits the type of locking hardware that can be used on the door.
The portion of the door frame in extending from the rabbet that creates a solid barrier for the door to close against.
A piece of metal used to protect the surface of the door frame and trim when the door swings closed and to provide a recess to accept the latching or deadbolt mechanism.
- Lipped strike – a strike with a lip that extends beyond the frame face and trim to prevent damage from a latchbolt.
- No Lip strike – a strike with no lip used to accept a deadbolt mechanism. A deadbolt is mechanically operated when the door is in the closed postition.
- Dustproof Strike – a strike with a spring loaded plunger that depresses when the deadbolt is inserted. When the door is in the unlocked position, the plunger extends to the strike surface preventing foreign debris from getting into the strike housing.
- Electric Strike – a strike used to control access from a remote location. Electric strikes have a solenoid that retracts the strike mechanism or engages the latchbolt allowing entry only when the strike is activated or if someone has authorization to operate the locking hardware with a key.
- Roller Latch Strike – A lipped strike with a recessed area instead of a hole allowing the roller to extend into the strike and maintain position until opened.
- Bullet Catch Strike - A lipped strike with a recessed area instead of a hole allowing the round “bullet” to extend into the strike and maintain position until opened.
A recessed area formed by an emboss process on a steel frame used to install the strike so it is flush with the frame surface. (See Emboss).
For single door openings, it is the vertical member of a door frame that contains one or more strikes. The jamb opposite the hinge jamb is the strike jamb even though it may not be prepared for a strike.
For single door openings, it is the vertical member of a sidelight frame that contains one or more strikes. The mullion opposite the hinge jamb or hinge mullion is the strike mullion even though it may not be prepared for a strike.
A recessed area formed by chiseling (wood doors and frames) cutting, and/or welding steel doors and frames) on a steel frame used to install the strike so it is flush with the frame surface.
A piece of solid metal attached to the inside of a door frame that is drilled and tapped for a surface mounted strike. The reinforcement provides the necessary depth of threads to adequately secure the strike.
Sub Frame (Sub Buck, Rough Buck)
A framework applied to a finished opening in a structure that serves as a suitable anchorage for a door frame when the material or location of the opening prohibits a standard installation. This is a common application for a Timely frame in masonry walls.
A folio of documents which includes the project shop drawings and door schedules specifically referring to the product data sheets for all products being supplied by a sub contractor or material supplier.
A round or square bolt applied to the surface of a door with a strike normally surface mounted on the frame used to lock down an inactive door in lieu of a flush bolt which is mortised into the door.
Surface Sliding Door
See “Barn Door”.
The arc or path of a door as it travels from its closed position to its maximum open position.