44 − 1.5 in selvages − 2 in assumed width shrinkage/trimming = 40.5 in default net WOF. These deductions are editable planning examples; measure your own fabric after any washing. 108 in defaults to 104 in usable. A 4 in overhang is a starting point; ask your quilter. Net WOF is not deducted again.
Required batting with your selected margin: 78 × 98 in. Package names and dimensions vary by brand. The examples below are not an industry-wide standard.
| Example label | Package (in) | Fits, allowing rotation? |
|---|---|---|
| Example crib | 45 × 60 | No |
| Example twin | 72 × 90 | No |
| Example full | 81 × 96 | No |
| Example queen | 90 × 108 | Yes |
| Example king | 120 × 120 | Yes |
Smallest fitting example by area: Example queen, 90 × 108 in.
Your custom package fits the required rectangle, with rotation if needed. Confirm the batting maker’s handling, joining and shrinkage instructions.
13 strips × 5 in per color. 100 starting squares per color; produces 100 finished units (0 spare).
Buy 1 ⅞ yd (1.875) per color, 1 color. Includes 2 in squaring per color. Square cut size includes two ¼ in seams.
These conventional starting formulas include no extra trim-down allowance. Sew a test unit; for trim buffers or Magic 8, use the existing HST calculator. Strip yield is floor(usable WOF ÷ cut size); offcuts are not nested.
QuiltCutCalc cutting plan Required batting 78 × 98 in, 4 in per side. Smallest fitting example: Example queen 90 × 108 in. Custom package 120 × 120 in: fits with rotation allowed. Verify the actual product label. Confirm the actual fabric and quilter requirements. Prices are editable examples, not market quotes.
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QuiltCutCalc cutting plan Required batting 78 × 98 in, 4 in per side. Smallest fitting example: Example queen 90 × 108 in. Custom package 120 × 120 in: fits with rotation allowed. Verify the actual product label. Confirm the actual fabric and quilter requirements. Prices are editable examples, not market quotes.
Start with the finished top size and add your quilter’s required batting margin on every side. Read the dimensions on the actual package, then check both dimensions rather than relying on a bed-size name. A package may rotate if the batting and your intended construction allow it.
For a 70″ × 90″ top with the calculator’s 4″ margin, the required rectangle is 78″ × 98″. A 72″ × 90″ package does not cover it, even though both the top and package may be called Twin. A larger package must supply at least 78″ and 98″ in the corresponding directions.
Hobbs Heirloom Premium 80/20 lists Crib 45″ × 60″, Twin 72″ × 90″, Full 81″ × 96″, Queen 90″ × 108″ and King 120″ × 120″. Those sizes describe that product. Warm & Natural Full is listed at 90″ × 96″, while its King package is 120″ × 124″. The Full and King differences are a practical reason to verify the label.
Use the Precut Batting Size Calculator for your dimensions, or return to the backing yardage calculator to check the separate backing cut plan.
A 4-inch margin on each side adds 8 inches to your finished quilt width and 8 inches to its length. APQS uses this allowance in its backing guide; Handi Quilter describes 4 to 5 inches per side as ideal. Confirm the backing and batting margins with your own quilter before buying or cutting.
Package sizes vary by brand and product. Hobbs Heirloom Premium 80/20 lists Crib 45 × 60, Twin 72 × 90, Full 81 × 96, Queen 90 × 108 and King 120 × 120 inches. Warm & Natural lists Full 90 × 96 and King 120 × 124 inches. Read the actual package and select one that covers your quilt top plus your quilter’s required margins in both dimensions, allowing rotation only when appropriate.
Package-size examples: Hobbs Heirloom 80/20, Warm & Natural Full and Warm & Natural King. The margin guidance comes from APQS and Handi Quilter.
Manufacturer and university guidance is linked for the specific techniques it supports. The calculations, sample prices, simulation and editable width assumptions are identified separately in the text.