SeeMyQuilt15 inch Ohio Star with Hourglass Center quilt block
Cutting chart, piecing steps and yardage for a Ohio Star with Hourglass Center block that finishes at 15". The block is a 3 × 3 grid and each cell finishes at 5".
Cutting chart for one block
| Fabric | Cut | Size | Then |
|---|---|---|---|
| Main | 2 squares | 6 1/4" × 6 1/4" | 8 triangles (cut twice on the diagonal) |
| Background | 3 squares | 6 1/4" × 6 1/4" | 10 triangles (cut twice on the diagonal) |
| Background | 4 squares | 5 1/2" × 5 1/2" | – |
| Accent | 1 square | 6 1/4" × 6 1/4" | 2 triangles (cut twice on the diagonal) |
How to piece it
- Cut the pieces in the chart above. All measurements include a 1/4" seam allowance.
- Cut the squares marked "cut twice" on both diagonals. Each gives four triangles with the long edge on the straight grain: these are the large triangles in flying geese and hourglass units.
- 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 quilt of 15" Ohio Star with Hourglass Center blocks
| Quilt size | Blocks | Finished size | Main | Background | Accent | Border & binding | Backing |
|---|---|---|---|---|---|---|---|
| Baby | 2 × 3 (6) | 36" × 51" | 1/2 yd | 1 1/4 yd | 1/4 yd | 1 yd | 3 1/2 yd |
| Lap | 3 × 4 (12) | 51" × 66" | 7/8 yd | 2 1/4 yd | 1/4 yd | 1 1/8 yd | 4 1/4 yd |
| Throw | 4 × 4 (16) | 66" × 66" | 1 1/4 yd | 3 1/8 yd | 1/2 yd | 1 3/8 yd | 4 1/4 yd |
| Twin | 4 × 6 (24) | 66" × 96" | 1 5/8 yd | 4 3/8 yd | 1/2 yd | 1 1/2 yd | 6 yd |
| Queen | 6 × 6 (36) | 96" × 96" | 2 3/8 yd | 6 1/2 yd | 5/8 yd | 1 7/8 yd | 8 3/4 yd |
| King | 7 × 7 (49) | 111" × 111" | 3 1/4 yd | 8 3/4 yd | 1 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.
What a lap quilt looks like
This diagram uses plain colors. To see the quilt in your own fabrics, with sashing or on point, use the tool below: tap a fabric and choose a photo.
See it 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
What do I cut for a 15 inch Ohio Star with Hourglass Center block?
2 main squares at 6 1/4" × 6 1/4"; 3 background squares at 6 1/4" × 6 1/4"; 4 background squares at 5 1/2" × 5 1/2"; 1 accent square at 6 1/4" × 6 1/4".
What size is the block before it is sewn into the quilt?
15 1/2" square. It finishes at 15" once the seams on all four sides are sewn.
How much fabric for a throw quilt of 15 inch Ohio Star with Hourglass Center blocks?
16 blocks make a 66" × 66" quilt. Buy 1 1/4 yd of main, 3 1/8 yd of background, 1/2 yd of accent and 1 3/8 yd of border & binding, plus 4 1/4 yd for the backing.
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