The lines don’t have any breaks in them. Quilters make stitches over the design lines. These create a channel between them. Then, sewers thread a cord of quilting wool through the channel. Technically, you can make a quilt in whatever dimensions you want. There are no standard sizes. You can https://www.catawiki.com/en/l/85648163-silk-bedspread-225-cm-195-cm-silk-damask