Broken Dishes Quilt Block — Cutting Chart for Any Size

2 fabrics · Difficulty 2 of 5

Broken Dishes is a 2×2 block of 8 pieces. Cut sizes for 4″, 8″, 12″, 16″, 20″ are below; for any other size it divides into cleanly, type the size and the chart recomputes.

Set the finished size

At a glance

Grid
2×2
Pieces you cut
4 — subcutting turns them into the 8 in the sewn block
Difficulty
2 of 5 — easy How this is scored

Set the size

Cutting sizes for a 12″ finished block.
Squares for half-square triangles — Fabric A
6⅞″
Squares for half-square triangles — Background
6⅞″
Broken Dishes quilt blockA 2 by 2 grid of 4 units: 4 half-square-triangle units. 8 pieces in total.
Broken Dishes — a 2 by 2 grid of 4 units: 4 half-square-triangle units. 8 pieces in total.

Reading focusRotation path across the triangle unitshalf-square-triangle unit

Construction lattice
2 modules wide × 2 modules high
Unit mix
half-square-triangle unit
Piece count
4 to cut · 8 in the diagram

Cut these pieces

Column headings are the FINISHED block size — the size it will be once it is sewn. Every number in the table is the size to CUT, which includes ¼″ of seam allowance on each edge. Rows that are subcut on a diagonal are cut larger still, so the allowance survives the extra cuts.

Scroll sideways to see every size.

Cutting sizes for Broken Dishes, by finished block size
Patch4″8″12″16″20″
Squares for half-square triangles — Fabric ACut 2, cut once on the diagonal2⅞″4⅞″6⅞″8⅞″10⅞″
Squares for half-square triangles — BackgroundCut 2, cut once on the diagonal2⅞″4⅞″6⅞″8⅞″10⅞″

Read the block

Match each fabric letter in the diagram to the same fabric name in the cutting table. The caption describes the generated geometry in text.

Fabrics in this block

  • A — gold
  • BG — background

Which sizes divide cleanly

Scroll sideways to see every column.

Which finished sizes each grid divides into cleanly
GridDivides cleanly atThe first few sizes
2×2this blockevery 1″1″, 2″, 3″, 4″, 5″, 6″ …
3×3every 1½″1½″, 3″, 4½″, 6″, 7½″, 9″ …
4×4every 2″2″, 4″, 6″, 8″, 10″, 12″ …
5×5every 2½″2½″, 5″, 7½″, 10″, 12½″, 15″ …
7×7every 3½″3½″, 7″, 10½″, 14″, 17½″, 21″
  • A 5-patch block at 12″ would need 2.4″ units, which is not a mark on any ruler. Try 10″ or 12½″ instead — Sister's Choice is the 5-patch block on this site.
  • A 7-patch block at 12″ would need 1.714…″ units, which is not a mark on any ruler. Try 10½″ or 14″ instead — Bear's Paw is the 7-patch block on this site.

More about the sizes that do not divide cleanly

The sizes in between

Every whole-inch Broken Dishes size from 4″ to 20″ can be cut accurately on its 2×2 grid.

These sizes divide cleanly but sit between the main chart's columns — the same computed cuts, published here so they exist on paper too. Any other clean size still computes in the size input above.

Column headings are the FINISHED block size — the size it will be once it is sewn. Every number in the table is the size to CUT, which includes ¼″ of seam allowance on each edge. Rows that are subcut on a diagonal are cut larger still, so the allowance survives the extra cuts.

Scroll sideways to see every size.

Cutting sizes for Broken Dishes — between sizes, by finished block size
Patch9″10″11″13″14″15″
Squares for half-square triangles — Fabric ACut 2, cut once on the diagonal5⅜″5⅞″6⅜″7⅜″7⅞″8⅜″
Squares for half-square triangles — BackgroundCut 2, cut once on the diagonal5⅜″5⅞″6⅜″7⅜″7⅞″8⅜″

About this block

Pieces in the finished block
8
Unit types
half-square-triangle unit
Divides cleanly at
1″, 2″, 3″, 4″, 5″, 6″, 7″, 8″, 9″, 10″, 11″, 12″, 13″, 14″, 15″, 16″, 17″, 18″, 19″, 20″ and 21″ finished.
Also known as
Old Tippecanoe, Whirling Blade
Fabric for one 12″ block
½ yd total, rounded up to the nearest ⅛ yard, assuming 40″ of usable width.

Identical units in different turns make this entire design — the fabric pairing never changes, only the turn of each unit. A unit flipped the wrong way looks right in the hand, so match every turn to the diagram before sewing. With so few seams, each crossing shows in the finished block.

Piecing order

  1. Make the 4 half-square-triangle units.

  2. Lay out row 1 of 2 and sew its pieces together, left to right.

  3. Lay out row 2 of 2 and sew its pieces together, left to right.

  4. Join the 2 rows, matching the seams.

Cutting oversize

The chart gives the standard cut sizes, nothing padded. Some quilters cut this block's triangle units a little oversize and trim back — published allowances genuinely disagree on how much, so the range with its sources is on how to square up a quilt block.

History

One of the earliest recorded pieced designs — Electric Quilt's block history cites examples back to the 1790s — yet the evocative name cannot be traced to any single original source. The block is nothing but half-square triangles; how you shade and turn them decides whether it reads as Broken Dishes, Old Tippecanoe or Whirling Blade. The recorded names follow the layout, not the unit.

Sources: Electric Quilt — Broken Dishes.


Common questions

What size can I make Broken Dishes?

Any size it divides cleanly: 1″, 2″, 3″, 4″, 5″, 6″, 7″, 8″, 9″, 10″, 11″, 12″, 13″, 14″, 15″, 16″, 17″, 18″, 19″, 20″ and 21″ finished. The chart above carries 4″, 8″, 12″, 16″, 20″ ready-worked, and the size input computes any other clean size without you doing arithmetic — every value computed by Quilt Block Atlas, none transcribed.

How many pieces are in a Broken Dishes block?

8 pieces make up the sewn block, but you cut 4. The difference is method: triangle units are cut as squares and subcut, so the chart's quantities are what your rotary cutter produces, not what you count in the diagram.

What sizes does a 2×2 block divide into cleanly?

1″, 2″, 3″, 4″, 5″, 6″, 7″, 8″, 9″, 10″, 11″, 12″, 13″, 14″, 15″, 16″, 17″, 18″, 19″, 20″ and 21″ finished. The step is half the grid this block's cutting sizes are computed on, and the clean-size table above marks this block's row with the other families beside it.

Is Broken Dishes good for a beginner?

Yes — it scores 2 of 5, easy, on this site's computed scale: 8 pieces, with the half-square-triangle unit as its hardest unit. The scoring rule, and every block ranked by it, is on the difficulty page linked above.

How do finished size, sewn unfinished/trim size, and starting cut size differ?

Finished size is 12″ after the block is sewn into surrounding seams. Its sewn unfinished/trim size is 12½″ before those outer seams, derived with the plain-square allowance. Starting cut size is the method-specific input listed in the chart. Starting cut size equals the unfinished outer target only for a plain square or rectangle workflow; it is not generally the same for pieced triangle units.


Keep going


Measure this square before you cut. It must be exactly 1 inch. If it isn't, your printer scaled the page — reprint at 100% or "Actual size", not "Fit to page".

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