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 sizeAt 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
Nearest sizes that cut cleanly:
- 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″
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.
| Patch | 6″ | 9″ | 12″ | 15″ | 18″ |
|---|---|---|---|---|---|
| Squares for half-square triangles — BackgroundCut 2, cut once on the diagonal | 2⅞″ | 3⅞″ | 4⅞″ | 5⅞″ | 6⅞″ |
| Squares for half-square triangles — Fabric ACut 1, cut once on the diagonal | 2⅞″ | 3⅞″ | 4⅞″ | 5⅞″ | 6⅞″ |
| Squares for half-square triangles — Fabric BCut 1, cut once on the diagonal | 2⅞″ | 3⅞″ | 4⅞″ | 5⅞″ | 6⅞″ |
| Squares for half-square triangles — Fabric CCut 1, cut once on the diagonal | 2⅞″ | 3⅞″ | 4⅞″ | 5⅞″ | 6⅞″ |
| Squares for quarter-square triangles — BackgroundCut 3, cut on both diagonals | 3¼″ | 4¼″ | 5¼″ | 6¼″ | 7¼″ |
| Squares for quarter-square triangles — Fabric ACut 1, cut on both diagonals | 3¼″ | 4¼″ | 5¼″ | 6¼″ | 7¼″ |
| Squares for quarter-square triangles — Fabric BCut 1, cut on both diagonals | 3¼″ | 4¼″ | 5¼″ | 6¼″ | 7¼″ |
| Squares for quarter-square triangles — Fabric CCut 1, cut on both diagonals | 3¼″ | 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.
| Grid | Divides cleanly at | The first few sizes |
|---|---|---|
| 2×2 | every 1″ | 1″, 2″, 3″, 4″, 5″, 6″ … |
| 3×3this block | every 1½″ | 1½″, 3″, 4½″, 6″, 7½″, 9″ … |
| 4×4 | every 2″ | 2″, 4″, 6″, 8″, 10″, 12″ … |
| 5×5 | every 2½″ | 2½″, 5″, 7½″, 10″, 12½″, 15″ … |
| 7×7 | every 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.
| Size you want | Nearest 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.
| Patch | 4½″ | 7½″ | 10½″ | 13½″ | 16½″ | 19½″ |
|---|---|---|---|---|---|---|
| Squares for half-square triangles — BackgroundCut 2, cut once on the diagonal | 2⅜″ | 3⅜″ | 4⅜″ | 5⅜″ | 6⅜″ | 7⅜″ |
| Squares for half-square triangles — Fabric ACut 1, cut once on the diagonal | 2⅜″ | 3⅜″ | 4⅜″ | 5⅜″ | 6⅜″ | 7⅜″ |
| Squares for half-square triangles — Fabric BCut 1, cut once on the diagonal | 2⅜″ | 3⅜″ | 4⅜″ | 5⅜″ | 6⅜″ | 7⅜″ |
| Squares for half-square triangles — Fabric CCut 1, cut once on the diagonal | 2⅜″ | 3⅜″ | 4⅜″ | 5⅜″ | 6⅜″ | 7⅜″ |
| Squares for quarter-square triangles — BackgroundCut 3, cut on both diagonals | 2¾″ | 3¾″ | 4¾″ | 5¾″ | 6¾″ | 7¾″ |
| Squares for quarter-square triangles — Fabric ACut 1, cut on both diagonals | 2¾″ | 3¾″ | 4¾″ | 5¾″ | 6¾″ | 7¾″ |
| Squares for quarter-square triangles — Fabric BCut 1, cut on both diagonals | 2¾″ | 3¾″ | 4¾″ | 5¾″ | 6¾″ | 7¾″ |
| Squares for quarter-square triangles — Fabric CCut 1, cut on both diagonals | 2¾″ | 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
Make the 4 half-square-triangle units.
Make the 5 quarter-square-triangle units.
Lay out row 1 of 3 and sew its pieces together, left to right.
Lay out row 2 of 3 and sew its pieces together, left to right.
Lay out row 3 of 3 and sew its pieces together, left to right.
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
Where this block appears
Calculators for this block
- Quilt block grid calculator
- Half square triangle calculator
- Quilt top size calculator
- Fabric yardage calculator
Reference
Before you print
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".