Seam lines shown. Region colors are role-default — fabric assignments happen on the Design Wall.

Patchwork

Double Nine Patch

Piece the five nine-patch units first, then join with the four plain squares. Press seams away from the nine-patch units so intersections lie flat.

Cut list

Dimensions for a 12 inch finished block with a standard 1/4 inch seam allowance. Scale proportionally for other finished sizes.

RegionRolePiecesCut size
TL R1C1Feature11 1/2" × 1 1/2"
TL R1C2Accent11 1/2" × 1 1/2"
TL R1C3Feature11 1/2" × 1 1/2"
TL R2C1Accent11 1/2" × 1 1/2"
TL R2C2Feature11 1/2" × 1 1/2"
TL R2C3Accent11 1/2" × 1 1/2"
TL R3C1Feature11 1/2" × 1 1/2"
TL R3C2Accent11 1/2" × 1 1/2"
TL R3C3Feature11 1/2" × 1 1/2"
Plain TopBackground13 1/2" × 3 1/2"
TR R1C1Feature11 1/2" × 1 1/2"
TR R1C2Accent11 1/2" × 1 1/2"
TR R1C3Feature11 1/2" × 1 1/2"
TR R2C1Accent11 1/2" × 1 1/2"
TR R2C2Feature11 1/2" × 1 1/2"
TR R2C3Accent11 1/2" × 1 1/2"
TR R3C1Feature11 1/2" × 1 1/2"
TR R3C2Accent11 1/2" × 1 1/2"
TR R3C3Feature11 1/2" × 1 1/2"
Plain LeftBackground13 1/2" × 3 1/2"
CT R1C1Feature11 1/2" × 1 1/2"
CT R1C2Accent11 1/2" × 1 1/2"
CT R1C3Feature11 1/2" × 1 1/2"
CT R2C1Accent11 1/2" × 1 1/2"
CT R2C2Feature11 1/2" × 1 1/2"
CT R2C3Accent11 1/2" × 1 1/2"
CT R3C1Feature11 1/2" × 1 1/2"
CT R3C2Accent11 1/2" × 1 1/2"
CT R3C3Feature11 1/2" × 1 1/2"
Plain RightBackground13 1/2" × 3 1/2"
BL R1C1Feature11 1/2" × 1 1/2"
BL R1C2Accent11 1/2" × 1 1/2"
BL R1C3Feature11 1/2" × 1 1/2"
BL R2C1Accent11 1/2" × 1 1/2"
BL R2C2Feature11 1/2" × 1 1/2"
BL R2C3Accent11 1/2" × 1 1/2"
BL R3C1Feature11 1/2" × 1 1/2"
BL R3C2Accent11 1/2" × 1 1/2"
BL R3C3Feature11 1/2" × 1 1/2"
Plain BottomBackground13 1/2" × 3 1/2"
BR R1C1Feature11 1/2" × 1 1/2"
BR R1C2Accent11 1/2" × 1 1/2"
BR R1C3Feature11 1/2" × 1 1/2"
BR R2C1Accent11 1/2" × 1 1/2"
BR R2C2Feature11 1/2" × 1 1/2"
BR R2C3Accent11 1/2" × 1 1/2"
BR R3C1Feature11 1/2" × 1 1/2"
BR R3C2Accent11 1/2" × 1 1/2"
BR R3C3Feature11 1/2" × 1 1/2"

How it goes together

  1. Step 1

    Cut your pieces

    Cut each region using the dimensions in the cut table for a 12 inch finished Double Nine Patch block. Standard 1/4 inch seam allowance is included.

  2. Step 2

    Sew sub-units

    Sew the smallest units first (half-square triangles, flying geese, four-patches), then build outward.

  3. Step 3

    Assemble the block

    Join the sub-units into rows or columns, then join the rows. Press as you go. Square the finished block to size.

Try the Double Nine Patch on a real layout.

Open it on the Design Wall. Try a few colors, see the math, change your mind.