SeeMyQuilt
Stars · Intermediate · 9" finished

9 inch Ohio Star quilt block

Cutting chart, piecing steps and yardage for a Ohio Star block that finishes at 9". The block is a 3 × 3 grid and each cell finishes at 3".

Finished block 9" × 9". Unfinished 9 1/2" × 9 1/2".

Cutting chart for one block

FabricCutSizeThen
Main2 squares4 1/4" × 4 1/4"8 triangles (cut twice on the diagonal)
Background2 squares4 1/4" × 4 1/4"8 triangles (cut twice on the diagonal)
Background4 squares3 1/2" × 3 1/2"–
Accent1 square3 1/2" × 3 1/2"–

How to piece it

  1. Cut the pieces in the chart above. All measurements include a 1/4" seam allowance.
  2. 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.
  3. Lay all the pieces out as in the diagram. The block is a 3 × 3 grid, and each cell finishes at 3". Sew neighbouring pieces into sections, then the sections into rows, pressing seams in opposite directions from row to row.
  4. Join the rows. The block should measure 9 1/2" now and 9" once it is sewn into the quilt.

Yardage for a quilt of 9" Ohio Star blocks

Quilt sizeBlocksFinished sizeMainBackgroundAccentBorder & bindingBacking
Baby3 × 5 (15)33" × 51"5/8 yd1 1/8 yd1/4 yd7/8 yd1 3/4 yd
Lap5 × 6 (30)51" × 60"1 yd2 yd3/8 yd1 1/8 yd4 yd
Throw6 × 7 (42)60" × 69"1 3/8 yd2 7/8 yd1/2 yd1 3/8 yd4 1/2 yd
Twin7 × 10 (70)69" × 96"2 1/8 yd4 3/4 yd3/4 yd1 5/8 yd6 yd
Queen10 × 10 (100)96" × 96"3 yd6 5/8 yd1 yd1 7/8 yd8 3/4 yd
King11 × 11 (121)105" × 105"3 5/8 yd8 yd1 1/4 yd2 yd9 1/2 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

5 × 6 blocks, 51" × 60" with border.

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

1. Your fabrics (tap a fabric, then choose a sample or your own photo)
2. Block
3. Quilt size
4. Block size
5. Setting

What to buy

FabricYardageCut

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 9 inch Ohio Star block?

2 main squares at 4 1/4" × 4 1/4"; 2 background squares at 4 1/4" × 4 1/4"; 4 background squares at 3 1/2" × 3 1/2"; 1 accent square at 3 1/2" × 3 1/2".

What size is the block before it is sewn into the quilt?

9 1/2" square. It finishes at 9" once the seams on all four sides are sewn.

How much fabric for a throw quilt of 9 inch Ohio Star blocks?

42 blocks make a 60" × 69" quilt. Buy 1 3/8 yd of main, 2 7/8 yd of background, 1/2 yd of accent and 1 3/8 yd of border & binding, plus 4 1/2 yd for the backing.