Quiltspiration

Snail's Trail quilt block

A four-patch center and four rounds of triangles. Each round turns the square 45° and two of its triangles are dark, so the dark fabric spirals out from the middle.

The Snail's Trail is pieced on a 8 × 8 grid, so a 12" block has 1½" grid squares.

Also called Monkey Wrench.

Snail's Trail quilt block in cranberry and cream
In cranberry and cream
Snail's Trail quilt block in navy and white
In navy and white

Cutting for 6", 8", 10", 12" blocks

Cutting for one block
FabricPiecesCut6" block8" block10" block12" block
mainCenter four-patch21¼"1½"1¾"2"
backgroundCenter four-patch21¼"1½"1¾"2"
mainRound 1 triangles, cut once on the diagonal12"2⅜"2¾"3"
backgroundRound 1 triangles, cut once on the diagonal12"2⅜"2¾"3"
mainRound 2 triangles, cut once on the diagonal12⅜"2⅞"3⅜"3⅞"
backgroundRound 2 triangles, cut once on the diagonal12⅜"2⅞"3⅜"3⅞"
mainRound 3 triangles, cut once on the diagonal13"3¾"4½"5⅛"
backgroundRound 3 triangles, cut once on the diagonal13"3¾"4½"5⅛"
mainRound 4 triangles, cut once on the diagonal13⅞"4⅞"5⅞"6⅞"
backgroundRound 4 triangles, cut once on the diagonal13⅞"4⅞"5⅞"6⅞"

Cut sizes include ¼" seam allowances.

How to sew a 12" Snail's Trail block

  1. Sew the four 2" squares into a four-patch.

  2. Cut the squares for each round once on the diagonal. Sew a triangle to two opposite sides of the four-patch, then the other two, with the dark triangles on two neighboring sides. Trim ¼" past the points.

  3. Add the next three rounds the same way, keeping the darks on the same side of the spiral each time. The block measures 12" finished, 12½" with seam allowance.

Quilts made with the Snail's Trail block

To paint it on a board, the Snail's Trail barn quilt pattern has the measurements for 2, 4 and 8 ft boards and the paint for each color.

Design a quilt with this block

Quiltspiration draws it in your own fabric and gives the cut list for any size.

More curved and template blocks