Dutch Hip Girder Truss
A timber girder truss with a full gable outline that carries the hip and short trusses of a gable-hip roof where the hips land, joined by steel connector plates.
Details
Category: Roof Framing › Timber Roof Framing › Hip and Valley Roofs › Hip Set Trusses
By Huu Khanh Nguyen · Updated November 4, 2026
Parameters
| Name | Default | Unit |
|---|---|---|
| Span | 9000 | mm |
| Pitch | 31 | ° |
| Overhang | 450 | mm |
| Member Thickness | 35 | mm |
| Chord Depth | 97 | mm |
| Web Depth | 70 | mm |
| Slope | Math.tan((pitch * Math.PI / 180)) | |
| Heel Height | chordDepth / Math.cos((pitch * Math.PI / 180)) | mm |
| Plate Thickness | 1 | mm |
| Plate Length | 190 | mm |
| Plate Width | 100 | mm |
| Width | span + 2 * overhang | mm |
| Depth | chordThickness + 2 * plateThickness | mm |
| Height | (span / 2 + overhang) * slope + heelHeight | mm |
| Timber finish | timberSpruceSawn |