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How much binding for a 66 × 90 quilt?
Twin size quilt, finished 66″ × 90″.
Buy
5/8 yd
Cut 9 strips 2½″ wide across the width of fabric for 324″ of double-fold binding. Metric: 0.6 m.
How it's worked out
- Perimeter: (66 + 90) × 2 = 312″.
- Add about 12″ to join the ends and turn the corners: 324″.
- Each strip across 42″–44″ fabric gives about 40″ usable, minus ~2½″ for each diagonal join → 37½″ per strip.
- 324 ÷ 37½ = 8.64 → 9 strips. 9 × 2½″ = 22 1/2″ → round up to 5/8 yd.
Binding by strip width
| Strip width | Strips | Buy | Metric | Bias (continuous) |
|---|---|---|---|---|
| 2″ | 9 | 1/2 yd | 0.5 m | 27 1/2″ square (7/8 yd) |
| 2 1/4″ | 9 | 5/8 yd | 0.6 m | 29 1/4″ square (7/8 yd) |
| 2 1/2″ | 9 | 5/8 yd | 0.6 m | 31″ square (7/8 yd) |
| 3″ | 9 | 3/4 yd | 0.7 m | 34 1/4″ square (1 yd) |
Bias binding is only needed for curved or scalloped edges; straight-grain strips are fine for square corners.
Same quilt: backing
Backing for a 66 × 90 quilt: 5 1/2 yd of 42″ fabric (2 panels with 1 vertical seam).
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