SeeMyQuiltSplit Nine Patch quilt block
A nine patch divided corner to corner: three dark squares, three light squares and three half-square triangles along the diagonal.
Cutting chart by block size
6" Split Nine Patch (cut for one block)
| Fabric | Cut | Size | Then |
|---|---|---|---|
| Main | 2 squares | 2 7/8" × 2 7/8" | 3 triangles (cut once on the diagonal) |
| Main | 3 squares | 2 1/2" × 2 1/2" | – |
| Background | 2 squares | 2 7/8" × 2 7/8" | 3 triangles (cut once on the diagonal) |
| Background | 3 squares | 2 1/2" × 2 1/2" | – |
9" Split Nine Patch (cut for one block)
| Fabric | Cut | Size | Then |
|---|---|---|---|
| Main | 2 squares | 3 7/8" × 3 7/8" | 3 triangles (cut once on the diagonal) |
| Main | 3 squares | 3 1/2" × 3 1/2" | – |
| Background | 2 squares | 3 7/8" × 3 7/8" | 3 triangles (cut once on the diagonal) |
| Background | 3 squares | 3 1/2" × 3 1/2" | – |
12" Split Nine Patch (cut for one block)
| Fabric | Cut | Size | Then |
|---|---|---|---|
| Main | 2 squares | 4 7/8" × 4 7/8" | 3 triangles (cut once on the diagonal) |
| Main | 3 squares | 4 1/2" × 4 1/2" | – |
| Background | 2 squares | 4 7/8" × 4 7/8" | 3 triangles (cut once on the diagonal) |
| Background | 3 squares | 4 1/2" × 4 1/2" | – |
15" Split Nine Patch (cut for one block)
| Fabric | Cut | Size | Then |
|---|---|---|---|
| Main | 2 squares | 5 7/8" × 5 7/8" | 3 triangles (cut once on the diagonal) |
| Main | 3 squares | 5 1/2" × 5 1/2" | – |
| Background | 2 squares | 5 7/8" × 5 7/8" | 3 triangles (cut once on the diagonal) |
| Background | 3 squares | 5 1/2" × 5 1/2" | – |
How to make a 15" Split Nine Patch block
- Cut the pieces in the chart above. All measurements include a 1/4" seam allowance.
- Cut the squares marked "cut once" in half on the diagonal. Each gives two triangles. Sew them to their neighbours along the long edge first and press toward the darker fabric.
- Lay all the pieces out as in the diagram. The block is a 3 × 3 grid, and each cell finishes at 5". Sew neighbouring pieces into sections, then the sections into rows, pressing seams in opposite directions from row to row.
- Join the rows. The block should measure 15 1/2" now and 15" once it is sewn into the quilt.
Yardage for a Split Nine Patch quilt (15" blocks)
| Quilt size | Blocks | Finished size | Main | Background | Border & binding | Backing |
|---|---|---|---|---|---|---|
| Baby | 2 × 3 (6) | 36" × 51" | 7/8 yd | 7/8 yd | 1 yd | 3 1/2 yd |
| Lap | 3 × 4 (12) | 51" × 66" | 1 5/8 yd | 1 5/8 yd | 1 1/8 yd | 4 1/4 yd |
| Throw | 4 × 4 (16) | 66" × 66" | 2 yd | 2 yd | 1 3/8 yd | 4 1/4 yd |
| Twin | 4 × 6 (24) | 66" × 96" | 3 yd | 3 yd | 1 1/2 yd | 6 yd |
| Queen | 6 × 6 (36) | 96" × 96" | 4 1/8 yd | 4 1/8 yd | 1 7/8 yd | 8 3/4 yd |
| King | 7 × 7 (49) | 111" × 111" | 5 5/8 yd | 5 5/8 yd | 2 1/8 yd | 10 yd |
Blocks side by side with a 3" border, 2 1/2" binding, 42" usable width and 10% extra.
Four ways to set it
A throw quilt of 15" Split Nine Patch blocks in each setting.
| Setting | Blocks | Finished size | Extra fabric |
|---|---|---|---|
| Side by side | 16 | 66" × 66" | – |
| With sashing | 12 | 55" × 72" | Sashing 3/4 yd, Cornerstones 1/8 yd |
| Alternating plain blocks | 8 pieced + 8 plain | 66" × 66" | Plain blocks 2 yd |
| On point | 13 | 69 3/4" × 69 3/4" | Setting triangles 1 3/4 yd |
See Split Nine Patch in your own fabrics
What to buy
| Fabric | Yardage | Cut |
|---|
Based on 42" usable fabric width, 1/4" seams and 10% extra. Your photos stay on your device.
Questions
How many fabrics does a Split Nine Patch block need?
Two: main and background. Choose a main fabric that contrasts clearly with the background so the design reads from a distance.
What size pieces do I cut for a 15 inch Split Nine Patch?
2 main squares at 5 7/8" × 5 7/8"; 3 main squares at 5 1/2" × 5 1/2"; 2 background squares at 5 7/8" × 5 7/8"; 3 background squares at 5 1/2" × 5 1/2".
How many Split Nine Patch blocks for a lap quilt?
12 blocks at 15", set 3 by 4 with a 3" border, make a 51" × 66" quilt.
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