| A | B | C | D | E | F |
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Seams run parallel to the highlighted edge.
Maximum cut width of a single panel (= your fabric roll width).
Seams will be parallel to the edge you select. The diagram highlights it.
Band direction — select two anchors:
Edge hems (mm):
Corner patch Side strip
A stack of layered triangles at each corner — spreads the load at the fixing point.
Reinforcement tape along the hem of each edge. Typically 40–80 mm wide.
Enter the elongation your fabric develops at working load. The cut patterns will be made slightly smaller so the finished sail reaches the exact designed dimensions once the fabric stretches under tension.
Knitted HDPE shade sail fabric: typically 1–3 %. Leave at 0 if you don't know your fabric's elongation.
Flattens every panel from 3D to a flat cut pattern. Set seam and hem margins in Paneling first.
Set margins in Paneling, then click Calculate.
All panels — use slider to inspect individually.
Calculate patterns first.
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Define anchor points and compute the surface first.
Compute forces to see corner details.
Select a sail to edit it. Changes apply across all tabs.
All anchor positions for every sail (m).
Top-down view · live XY projection
How many anchor points does this sail have?
X · Y are ground position (m). Z is height above ground (m).
Enter anchors to see lengths.
Press Calculate to see lengths.
Click a seam to see its curve.
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