The rough opening (R) is 2″ wide by 1″ high.
The throat size is determined by the wall thickness. Common wall compositions and their throat size: 2-1/2” metal stud, 1 layer of 5/8” sheetrock both sides: 3-3/4” 3-5/8” metal stud, 1 layer of 5/8” sheetrock both sides: 4-7/8” 3-5/8” metal stud, 2 layers of 5/8” sheetrock both sides: 6-1/8” 6” metal stud, 1 layer of
Class A (3 hour) – openings in firewalls that divide a single building into fire areas. Class B (1-1/2 hour) – openings in enclosures of vertical shafts and stairwells through buildings and in 2-hour rated partitions providing horizontal fire separations. Class C (3/4 hour) – openings in walls or partitions between rooms and corridors having
It depends on the rating. All glass used in fire-rated doors must be listed glass and be either ¾” wire or other listed material. Basic guidelines: 20 minute fire-rated door – 1,296 sq. in. per lite 3/4 hour fire-rated door – 1,296 sq. in. per lite 1-1/2 hour fire-rated door – 100 sq. in. per
Rotary sliced or rotary cut follows a log’s annual growth rings, providing a bold, random appearance. Plain sliced or flat cut is sliced parallel to the center of a log, creating a cathedral or straight grain pattern, which is ideally suited for matching doors and wall patterns. Quarter cutting produces a series of straight grained