Technocal Specifications - Bi-folding Door Performance
W/M²K
Permeable
Tightness
Resistance
These statistics apply for: Open out doors, standard double-glazed units, argon filled (low-E, en=0.05, soft coat), 16mm or more (1.2 Glass - U Value centre Pane*). Achieving air permeabitily Class 4, water tightness mets & exceeds requirements for class 9A, wind resistance mets class AE2400.
See the technical drawings below for more information.
| Document Description | Download |
| Folding door Section Identification - Technical drawings |  (0.5Mb) |
| Folding door Assembly / Fitting Instructions - Instruction Manual | (0.3Mb) |
Specification - Bi-fold Sizes
| Min. Overall Width (mm) | 1400 |
| Max. Overall Width (mm) | 6250+ |
| Min. Overall Height (mm) | 1600 |
| Max. Overall Height (mm) | 2500+ |
| Max. Panel width (mm) | 1000 |
| Max. Weight Per Panel (kg) | 100 |
Widths wider than 6250 can be achieved with a mechanical join, and heights of more than 2500 and upto 3000 can be achieved (subject to location) - please ask our technical department. Panel Widths can now be made less than 700mm, please ask. Max widths can increase or decrease depending on height of doors and vice versa. Please ask for more info.
Specification - Frame Dimensions
| Outer frame depth at the edge - front to back(mm) | 70 |
| Sash Depth - front to back (mm) | 70 |
| Threshold Height (mm) | 54 |
| Low Thresholds Height (mm) | 34 |
| Room Divider Threshold Height (mm) | 22 |
| Glass - Clear Toughened (mm) | 28 ( 4 x 20 x 4) |
Specifications - Glass Sight Lines
| Head (mm) | 110 |
| Bottom (Including Room divider threshold) (mm) |
118 |
| Bottom (Including threshold) (mm) | 130 |
| Bottom (Including Threshold & drip tray) (mm) |
151 |
| Jambs (mm) | 110 |
| Meeting Stiles (mm) | 140 |
Opening Styles
Doors show are all viewed from the outside, all doors can be made to open in or out. (there is no cost difference to open in or open out doors)
| No of Door Panels | 2 | 3 | 4 | 5 | 6 | 7 | 8+ |
| Min Width | 1400 | 2100 | 2800 | 3500 | 4200 | 4900 | Please |
| Max Width | 2000 | 3000 | 4000 | 5000 | 6000 | 7000 | Ask |
| No of Door Panels | All |
| Min Height | 1600 |
| Max Height | 3000 |
All sizes are for guidance only and are subject to location of the fitted product. Please contact us for more information.
