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How much binding for a 90 × 108 quilt?
Queen size quilt, finished 90″ × 108″.
Buy
7/8 yd
Cut 11 strips 2½″ wide across the width of fabric for 408″ of double-fold binding. Metric: 0.7 m.
How it's worked out
- Perimeter: (90 + 108) × 2 = 396″.
- Add about 12″ to join the ends and turn the corners: 408″.
- Each strip across 42″–44″ fabric gives about 40″ usable, minus ~2½″ for each diagonal join → 37½″ per strip.
- 408 ÷ 37½ = 10.88 → 11 strips. 11 × 2½″ = 27 1/2″ → round up to 7/8 yd.
Binding by strip width
| Strip width | Strips | Buy | Metric | Bias (continuous) |
|---|---|---|---|---|
| 2″ | 11 | 5/8 yd | 0.6 m | 30 5/8″ square (7/8 yd) |
| 2 1/4″ | 11 | 3/4 yd | 0.7 m | 32 5/8″ square (1 yd) |
| 2 1/2″ | 11 | 7/8 yd | 0.7 m | 34 1/2″ square (1 yd) |
| 3″ | 12 | 1 yd | 1.0 m | 38″ square (1 1/8 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 90 × 108 quilt: 8 1/4 yd of 42″ fabric (3 panels with 2 horizontal seams).
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