Roof Slope Garage Door Track Set
By Huu Khanh Nguyen · Updated October 28, 2026 · sectional, track, roof-slope, follow-the-roof
The guide tracks of a sectional garage door whose horizontal run rises at the pitch of the roof behind the opening.
Parameters
| Name | Default | Unit |
|---|---|---|
| Width | 2548 | mm |
| Depth | Math.cos(slopeAngle * Math.PI / 180) * (openingHeight + 450) | mm |
| Height | (curveStart + curveRadius * Math.cos(slopeAngle * Math.PI / 180) + ((sizeY - 40) - ((155 - trackWidth / 2) + curveRadius * (1 - Math.sin(slopeAngle * Math.PI / 180)))) * Math.tan(slopeAngle * Math.PI / 180)) + trackWidth / (2 * Math.cos(slopeAngle * Math.PI / 180)) + ceilingGap | mm |
| Opening height | 2125 | mm |
| Track width | 51 | mm |
| Roof slope | 15 | ° |
| Curve radius | 381 | mm |
| Curve start below the door top | 203 | mm |
| Ceiling gap | 200 | mm |
| Height of the curve start | openingHeight - curveDrop | mm |