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“ what is mean by clear opening in window ”

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Resolution: STC stands for Sound Transmission Class. An STC (Sound Transmission Class) is a single number rating system derived from measured values of sound transmission loss in accordance with ASTM E90...:

What fire ratings are available on DW-Series Borrowed Lights?

Resolution: DW-Series Fire Rated Borrowed Lights are available in the following sizes: 60 minute (1 hour) rating = 2721 square inches of visible glass. maximum frame rabbet to rabbet dimensions = 78 1/4...:

What is the maximum glass light size on a 3 hour (180 minute) fire rated door?

Resolution: Maximum glass light sizes for 3 hour fire doors is as follows: Wire glass - not approved for use in 3 hour fire doors. Ceramic glass: UL & ITS/WH allow one (1) light with 100 square inc...:

What is the minimum clear opening width required by ADA on a single door?

Resolution: The minimum clear opening width for ADA is 32" measured from face of door opened to 90 degrees to face of stop on strike jamb. There must be no hardware mounted to the door projectin...:

What is clear opening width?

Resolution: Clear Opening Width for swinging doors is measured (with the door open 90 degree) from the face of door to stop soffit on strike jamb. &nbs...:

What is the Multi Point LM9300 Series?

Resolution: MultiPoint locks are three-point locking systems that secure the door at three points – top, bottom, and traditional center latch location. Operating just like traditional locks, MultiPoint locks...:

Can DE-Series frames be prepared for pocket pivot hinges?

Resolution: Pocket pivot hinges are mainly used in cross corridor applications where clear opening width is a factor. For frames, pocket pivot hinges are a special hinge options which must be spe...:

What is the difference between the FE and DE-Series frames

Resolution: A Double Egress frame is a double door frame prepared to receive two single-acting doors swinging in opposite directions (both doors are) the same hand. These openings are installed in cross corrid...:

What is the maximum glass light size available on a 20 minute sidelight frame?

Resolution: On fire rated transom and/or sidelight frames and fire rated window frames, Steelcraft labeling procedures only control the O/A width and/or height of the frames based on wall condition. The amount...: