1. Referring to Quilt Assembly Diagram, join two each of border units A and B to make a short border strip. Press seams open. Repeat to make four short border strips total.
2. Sew large triangle-squares to ends of two short border strips to make long border strips. Press seams toward short border strips.
3. Sew short border strips to opposite edges of quilt center. Add long border strips to remaining edges to complete quilt top. Press all seams toward border.