The double z quilt block is a stunner – and it is so easy to make! I have made it here as an 18″ square. You need to use fabrics with a good contrast and I have used purple and white which show the design up nicely.
Cutting requirements for the double z quilt block
6.7/8″ squares: two purple, two white
3.7/8″ squares: two purple, two white
3.7/8″ by 6.7/8″ rectangles: four purple, four white
Making the double z quilt block
Make half square triangle units with the 3.7/8″ squares and with the 6.7/8″ squares. Place a purple and a white square with right sides together and mark a line along the diagonal. Sew a 1/4″ seam either side of the marked line and cut along the line. This will give you two half square triangles for each pair of squares that you begin with.
You can see how to make half rectangle triangles on this link.
Lay the squares out as shown for the double z quilt block. There’s a large half square triangle in each corner, with the white facing out. The four small half square triangles are placed in the middle of the square. The purple triangles form a larger triangle at top and bottom while the white triangles form larger white triangles on the sides.
There are two half rectangle triangles placed between each pair of corners. They are placed so that the white triangles form larger triangles pointing towards the middle.
Sew the half rectangle triangles together in pairs and sew the four small half square triangles together to form a four patch unit in the middle.
The patchwork pieces now form three rows and you can sew the squares together across each row. Sew the rows to each other to complete the double z quilt block.
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