External Roller Door
By Huu Khanh Nguyen · Updated October 28, 2026 · roller-door, external, exterior, garage-door, hormann, garador, reverse-rolled
A roller garage door fitted in front of the opening, its curtain winding outward into a cover above the doorway. Slat type, height and thickness Drive on the left or the right Door colour
Parameters
| Name | Default | Unit |
|---|---|---|
| Clear Width | 2500 | mm |
| Clear Height | 2125 | mm |
| Slat Height | 77 | mm |
| Slat Thickness | 19 | mm |
| Drive Side | left | |
| Colour | #ffffff | |
| Opening Travel | 0 | mm |
| Guide Width | width <= 3000 ? 75 : 105 | mm |
| Guide Depth | width <= 3000 ? 28 : 35 | mm |
| Slat Engagement | Math.min(50, guideWidth - 40.8) | mm |
| Shaft Diameter | width <= 4000 ? 70 : 102 | mm |
| Slat Count | Math.ceil(height / slatHeight) | |
| Box Size | shaftDiameter == 70 ? (slatCount * slatHeight * slatThickness <= 36575 ? 250 : slatCount * slatHeight * slatThickness <= 52668 ? 300 : slatCount * slatHeight * slatThickness <= 86317 ? 360 : 405) : (slatCount * slatHeight * slatThickness <= 29260 ? 250 : slatCount * slatHeight * slatThickness <= 45353 ? 300 : slatCount * slatHeight * slatThickness <= 77539 ? 360 : 405) | mm |
| Overall Width | width + 320 | mm |
| Overall Depth | guideDepth / 2 - slatThickness / 2 + boxSize | mm |
| Overall Height | height + boxSize | mm |