Quilt Size
70" × 70"
Total Cost
$126.43
Layout
4 × 4
Interfacing: Iron-on fusible interfacing stabilizes stretchy T-shirt knit and prevents distortion during sewing.
Block size: 14" is the most versatile—large enough for most designs but not too big for the quilt.
Sashing: 2–3" sashing frames each block and makes the quilt look polished. Choose a complementary solid color.
Professional T-shirt quilt services charge $100–$500+ depending on size, sashing, and quilting pattern
| Bed Size | Dimensions | ~Shirts |
|---|---|---|
| Throw | 50" × 60" | 9–12 |
| Twin | 66" × 90" | 16–20 |
| Full | 80" × 90" | 20–25 |
| Queen | 86" × 96" | 25–30 |
| King | 104" × 96" | 30–36 |
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Price as of Jun 27, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Inputs
Result
Nine shirts arrange in a 3×3 grid. With 14" blocks, 2" sashing, and 4" borders, the finished quilt is about 54×54"—a nice throw size. Total materials run about $40.
Inputs
Result
Sixteen shirts form a 4×4 grid. With 14" blocks, 2" sashing, and 4" borders, the finished quilt measures about 72×72"—between throw and twin size. Materials total about $55.
Inputs
Result
Twenty-five shirts fit a 5×5 grid. With 16" blocks, 3" sashing, and 6" borders, the quilt is about 104×104"—a generous queen/king size. Wool batting and larger size bring materials to about $132.
The number of T-shirts determines your quilt size. A throw-size quilt needs 9–12 shirts, a twin needs 16–20, a full/queen needs 20–30, and a king needs 30–36. Each shirt becomes one square block (typically 12–16 inches). The calculator auto-arranges blocks into a near-square grid and tells you the finished quilt dimensions.
| Quilt Size | Shirts Needed | Layout (14" blocks) | Finished Size |
|---|---|---|---|
| Throw | 9–12 | 3×3 or 3×4 | ~48×48" to 48×64" |
| Twin | 16–20 | 4×4 or 4×5 | ~64×64" to 64×80" |
| Queen | 25–30 | 5×5 or 5×6 | ~80×80" to 80×96" |
| King | 30–36 | 6×5 or 6×6 | ~96×80" to 96×96" |
The most popular block size is 14 inches square. This is large enough to capture most T-shirt designs while keeping the quilt to a manageable size. Use 12-inch blocks if your designs are small or you want more blocks per quilt. Use 16-inch blocks for oversized designs or if you have fewer shirts and want a bigger quilt.
| Block Size | Best For | 16 Shirts Makes | 25 Shirts Makes |
|---|---|---|---|
| 12" blocks | Small designs | ~52×52" | ~64×64" |
| 14" blocks | Most designs | ~62×62" | ~76×76" |
| 16" blocks | Large graphics | ~70×70" | ~86×86" |
Yes, fusible interfacing is essential. T-shirt fabric is stretchy knit that distorts when cut and sewn without stabilization. Iron-on fusible interfacing (like Pellon SF101 or HeatnBond) bonds to the back of each T-shirt block, making it behave like woven fabric. Cut your interfacing the same size as your finished block.
| Interfacing Type | Weight | Cost/sq ft | Best For |
|---|---|---|---|
| Pellon SF101 | Medium | ~$0.12 | Most T-shirt quilts |
| HeatnBond Lite | Light | ~$0.10 | Lightweight tees |
| Pellon 931TD | Heavy | ~$0.15 | Very stretchy knits |
Sashing (fabric strips between blocks) is strongly recommended. It frames each T-shirt design, makes the quilt look polished, and adds 4–8 inches to overall quilt size. Most quilters use 2–3 inch wide sashing in a solid color that complements the T-shirts. Without sashing, blocks butt up directly against each other and designs can visually clash.
| Sashing Width | Extra Fabric (16 shirts) | Size Increase | Look |
|---|---|---|---|
| No sashing | 0 yd | 0" | Blocks touch directly |
| 2" sashing | ~0.5 yd | +6–10" | Subtle framing |
| 3" sashing | ~0.8 yd | +10–15" | Bold framing |
A DIY T-shirt quilt costs $30–$80 in materials (interfacing, sashing, backing, binding, batting). Professional T-shirt quilt services charge $100–$500 depending on size, sashing, and quilting pattern. The DIY savings are 60–80%, but the project takes 8–20 hours depending on your sewing experience.
| Quilt Size | DIY Cost | Professional | DIY Time |
|---|---|---|---|
| Throw (12 shirts) | $30–$50 | $100–$200 | 8–12 hrs |
| Twin (16 shirts) | $45–$70 | $150–$300 | 12–16 hrs |
| Queen (25 shirts) | $65–$100 | $250–$500 | 16–24 hrs |
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Last Updated: Jul 13, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.