Place Mat: 13in x 18in. Runner 13in x 36in. The Creative Grids 45 Degree Diamond Dimensions Ruler (CGREU2) is required. The Creative Grids 15-1/2 inch square (CGR15) is recommended. Designed by Erin Underwood. This pattern includes fabric requirements and instructions to make 4 placemats or 2 placemats and a table runner. Intermediate skill level.