I love trying out new ideas for quilt borders and the pyramid border is a great way to have something different without involving anything too complicated. the basic block is made from three triangles and I havemade it 4″ wider here.
Making the pyramid quilt border
The triangles required for the pyramid quilt border are made from 5.1/4″ white and dark squares cut across both diagonals to make quarter square triangles, and 4.7/8″ light squares cut across one diagonal to make half square triangles.
Begin by sewing together a white triangle and a dark triangle with the white on the left and the dark on the right. Sew this unit to the diagonal edge of the light coloured half square triangle. This is the basic unit of the pyramid quilt border.
Press these squares and trim the ends of the triangles to reduce bulk. Sew the squares together in whatever lengths you need for the edge of your quilt. In order to avoid a mismatch at the end of the quilt edge it make sense to make the pyramid quilt border squares the same size as the quilt blocks. For example if you had 2″ finished size quilt blocks then you would make the pyramid quilt border squares from 2.7/8″ light squares and 3.1/4″ dark and white squares.
Make cornerstones for the pyramid quilt border
Sew a length of the pyramid quilt border squares to the top and bottom of the quilt. You then need a cornerstone to add to the quilt border for the sides. This is where I really struggled. Another pyramid square didn’t look right because of the change of direction. I tried plain squares in all three fabrics and they didn’t look right either. In the end I settled for a square made of a light fabric and a white half square triangle. I think that fits in well with the pyramid quilt border squares.