| Perforation | Perforation (board) % |
Board dimensions | Furring channel b mm |
Edge designs | |||
|---|---|---|---|---|---|---|---|
| Width mm | Lengh mm | 4 SK | FF/UFF | linear | |||
| 8/18 Q | 19.8 | 1188 | 1998 | 333 | • | • | - |
| 12/25 Q | 23.0 | 1200 | 2000 | 333.3 | • | • | • |
Standard square perforation Q
Video
Reference objects
