Roof Ribbon Calculator
Ribbon lengths and spacing for a house-shaped tent, from roof center to the wall-top perimeter
Tent dimensions
Off: equal distance along wall top. On: equal angle around roof center.
5%
Same proportional bend on every ribbon. Higher values add more material length.
Schematic
Red dot: roof center. Blue lines: ribbons (numbered in top view). Purple: side ribbons in elevation. Dashed line: ridge.
Summary
- Perimeter
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- Spacing along wall top
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- Total ribbon length
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- Ribbon count
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Ribbon details
| Ribbon | Wall | Position on wall | Straight span | Ribbon length | To next ribbon |
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Ribbon length uses a parabolic sag model with constant sag ratio, so every ribbon drapes proportionally. Add extra length manually for knots or trimming.