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Strips & logs · Confident beginner · 12" finished

12 inch Piano Keys quilt block

Cutting chart, piecing steps and yardage for a Piano Keys block that finishes at 12". The block is a 8 × 8 grid and each cell finishes at 1 1/2".

Finished block 12" × 12". Unfinished 12 1/2" × 12 1/2".

Cutting chart for one block

FabricCutSizeThen
Main2 rectangles12 1/2" × 2"–
Background2 rectangles12 1/2" × 2"–
Accent2 rectangles12 1/2" × 2"–
Fabric 42 rectangles12 1/2" × 2"–

How to piece it

  1. Cut the pieces in the chart above. All measurements include a 1/4" seam allowance.
  2. Lay all the pieces out as in the diagram. The block is a 8 × 8 grid, and each cell finishes at 1 1/2". Sew neighbouring pieces into sections, then the sections into rows, pressing seams in opposite directions from row to row.
  3. Join the rows. The block should measure 12 1/2" now and 12" once it is sewn into the quilt.

Yardage for a quilt of 12" Piano Keys blocks

Quilt sizeBlocksFinished sizeMainBackgroundAccentFabric 4Border & bindingBacking
Baby3 × 4 (12)42" × 54"1/2 yd1/2 yd1/2 yd1/2 yd1 yd3 1/2 yd
Lap4 × 5 (20)54" × 66"7/8 yd7/8 yd7/8 yd7/8 yd1 1/8 yd4 1/4 yd
Throw5 × 6 (30)66" × 78"1 1/4 yd1 1/4 yd1 1/4 yd1 1/4 yd1 3/8 yd5 yd
Twin6 × 8 (48)78" × 102"2 yd2 yd2 yd2 yd1 3/4 yd9 1/4 yd
Queen8 × 8 (64)102" × 102"2 3/4 yd2 3/4 yd2 3/4 yd2 3/4 yd1 7/8 yd9 1/4 yd
King9 × 9 (81)114" × 114"3 3/8 yd3 3/8 yd3 3/8 yd3 3/8 yd2 1/8 yd10 1/4 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

4 × 5 blocks, 54" × 66" 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.

8" Piano Keys16" Piano KeysAll Piano Keys sizes

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 12 inch Piano Keys block?

2 main rectangles at 12 1/2" × 2"; 2 background rectangles at 12 1/2" × 2"; 2 accent rectangles at 12 1/2" × 2"; 2 fabric 4 rectangles at 12 1/2" × 2".

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

12 1/2" square. It finishes at 12" once the seams on all four sides are sewn.

How much fabric for a throw quilt of 12 inch Piano Keys blocks?

30 blocks make a 66" × 78" quilt. Buy 1 1/4 yd of main, 1 1/4 yd of background, 1 1/4 yd of accent, 1 1/4 yd of fabric 4 and 1 3/8 yd of border & binding, plus 5 yd for the backing.