The Dublin Steps quilt block has some similarities with the jacobs ladder types of quilt block and I think that it’s a really pretty block. It is a nine patch block and I have made it here as a 12″ finished size block.
Cutting requirements for the Dublin steps quilt block
six 2.1/2″ squares in both white and dark blue
two 2.7/8″ squares in both dark blue and white
one 4.1/2″ medium blue square
two 4.7/8″ squares in both medium blue and light blue
Making the Dublin steps quilt block
Make half square triangles with the 2.7/8″ and the 4.7/8″ squares. Place two squares 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 produces two half square triangles from each pair of squares.
Lay the squares out as shown. The 4.1/2″ medium blue square is in the middle with a medium blue/light blue half square triangle on each edge of the square. In the top right and bottom left corner there are four patch units made with dark blue and white squares. The other two corner units are also four patch units but they are made with two half square triangles and a white and a dark blue 2.1/2″ square.
Sew the small squares in the corner units together in pairs and then sew the pairs together to make a complete four patch unit in each corner. All the patches are now the same size so you can sew the squares together across each row.
Sew the rows together to complete the Dublin steps quilt block.