Card Trick Quilt Block — Cutting Chart for Any Size

4 fabrics · Difficulty 4 of 5

Card Trick is a 3×3 block of 28 pieces. Cut sizes for 6″, 9″, 12″, 15″, 18″ 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
3×3
Pieces you cut
11 — subcutting turns them into the 28 in the sewn block
Difficulty
4 of 5 — experienced How this is scored

Set the size

Cutting sizes for a 12″ finished block.
Squares for half-square triangles — Background
4⅞″
Squares for half-square triangles — Fabric A
4⅞″
Squares for half-square triangles — Fabric B
4⅞″
Squares for half-square triangles — Fabric C
4⅞″
Squares for quarter-square triangles — Background
5¼″
Squares for quarter-square triangles — Fabric A
5¼″
Squares for quarter-square triangles — Fabric B
5¼″
Squares for quarter-square triangles — Fabric C
5¼″
Card Trick quilt blockA 3 by 3 grid of 9 units: 4 half-square-triangle units and 5 quarter-square-triangle units. 28 pieces in total.
Card Trick — a 3 by 3 grid of 9 units: 4 half-square-triangle units and 5 quarter-square-triangle units. 28 pieces in total.

Reading focusHourglass and triangle units trace the woven reading orderquarter-square-triangle unit + half-square-triangle unit

Construction lattice
3 modules wide × 3 modules high
Unit mix
half-square-triangle unit, quarter-square-triangle unit
Piece count
11 to cut · 28 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 Card Trick, by finished block size
Patch6″9″12″15″18″
Squares for half-square triangles — BackgroundCut 2, cut once on the diagonal2⅞″3⅞″4⅞″5⅞″6⅞″
Squares for half-square triangles — Fabric ACut 1, cut once on the diagonal2⅞″3⅞″4⅞″5⅞″6⅞″
Squares for half-square triangles — Fabric BCut 1, cut once on the diagonal2⅞″3⅞″4⅞″5⅞″6⅞″
Squares for half-square triangles — Fabric CCut 1, cut once on the diagonal2⅞″3⅞″4⅞″5⅞″6⅞″
Squares for quarter-square triangles — BackgroundCut 3, cut on both diagonals3¼″4¼″5¼″6¼″7¼″
Squares for quarter-square triangles — Fabric ACut 1, cut on both diagonals3¼″4¼″5¼″6¼″7¼″
Squares for quarter-square triangles — Fabric BCut 1, cut on both diagonals3¼″4¼″5¼″6¼″7¼″
Squares for quarter-square triangles — Fabric CCut 1, cut on both diagonals3¼″4¼″5¼″6¼″7¼″

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
  • B — turkey red
  • C — teal
  • 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
2×2every 1″1″, 2″, 3″, 4″, 5″, 6″ …
3×3this blockevery 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

A 10″ Card Trick cannot be cut accurately on its 3×3 grid. Use 9″ or 10½″ instead; both cutting charts are on this page, computed by Quilt Block Atlas.

Both columns are FINISHED block sizes — the size a block will be once it is sewn, never a size to cut. Look the clean size up in the charts on this page for its cutting numbers.

Scroll sideways if the table is wider than your screen.

Whole-inch sizes that cannot be cut accurately for Card Trick, and the nearest sizes that can
Size you wantNearest sizes that cut cleanly
4″3″ or 4½″
5″4½″ or 6″
7″6″ or 7½″
8″7½″ or 9″
10″9″ or 10½″
11″10½″ or 12″
13″12″ or 13½″
14″13½″ or 15″
16″15″ or 16½″
17″16½″ or 18″
19″18″ or 19½″
20″19½″ or 21″

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 Card Trick — between sizes, by finished block size
Patch4½″7½″10½″13½″16½″19½″
Squares for half-square triangles — BackgroundCut 2, cut once on the diagonal2⅜″3⅜″4⅜″5⅜″6⅜″7⅜″
Squares for half-square triangles — Fabric ACut 1, cut once on the diagonal2⅜″3⅜″4⅜″5⅜″6⅜″7⅜″
Squares for half-square triangles — Fabric BCut 1, cut once on the diagonal2⅜″3⅜″4⅜″5⅜″6⅜″7⅜″
Squares for half-square triangles — Fabric CCut 1, cut once on the diagonal2⅜″3⅜″4⅜″5⅜″6⅜″7⅜″
Squares for quarter-square triangles — BackgroundCut 3, cut on both diagonals2¾″3¾″4¾″5¾″6¾″7¾″
Squares for quarter-square triangles — Fabric ACut 1, cut on both diagonals2¾″3¾″4¾″5¾″6¾″7¾″
Squares for quarter-square triangles — Fabric BCut 1, cut on both diagonals2¾″3¾″4¾″5¾″6¾″7¾″
Squares for quarter-square triangles — Fabric CCut 1, cut on both diagonals2¾″3¾″4¾″5¾″6¾″7¾″

About this block

Pieces in the finished block
28
Unit types
half-square-triangle unit, quarter-square-triangle unit
Divides cleanly at
1½″, 3″, 4½″, 6″, 7½″, 9″, 10½″, 12″, 13½″, 15″, 16½″, 18″, 19½″ and 21″ finished.
Also known as
Winning Hand
Attribution
Jeffrey Gutcheon, 1970s (McCall's Needlework and Crafts)
Fabric for one 12″ block
1½ yd total, rounded up to the nearest ⅛ yard, assuming 40″ of usable width.

No plain patch appears anywhere — every unit is pieced from triangles, and the centre unit alone holds a triangle of each card fabric plus the background. The weave only reads if each corner's fabric carries through the edge unit beside it, so lay the whole block out and confirm the interleave before joining anything.

Piecing order

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

  2. Make the 5 quarter-square-triangle units.

  3. Lay out row 1 of 3 and sew its pieces together, left to right.

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

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

  6. Join the 3 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

A modern block with a named designer: Jeffrey Gutcheon drew Card Trick in the 1970s and it ran in McCall's Needlework and Crafts; the Quilters Hall of Fame, which inducted Gutcheon in 1990, calls it a modern classic. Some sources sell it as Winning Hand. It has no Brackman number — the traditional indexes end where designer blocks begin — and the fanned-cards illusion gives the block its name.

Sources: MadamSew — Card Trick; Quilters Hall of Fame — Jeffrey Gutcheon.


Common questions

What size can I make Card Trick?

Any size it divides cleanly: 1½″, 3″, 4½″, 6″, 7½″, 9″, 10½″, 12″, 13½″, 15″, 16½″, 18″, 19½″ and 21″ finished. The chart above carries 6″, 9″, 12″, 15″, 18″ 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 Card Trick block?

28 pieces make up the sewn block, but you cut 11. 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 3×3 block divide into cleanly?

1½″, 3″, 4½″, 6″, 7½″, 9″, 10½″, 12″, 13½″, 15″, 16½″, 18″, 19½″ 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 Card Trick good for a beginner?

Not as a first block — it scores 4 of 5, experienced, on this site's computed scale: 28 pieces, with the quarter-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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