Eurographics Quilt Workshop XL 500-Piece Puzzle. Box size 8"x8"x2.3". Finished Puzzle Size: 19.25" x 26.5". Quilting is the term given to the process of joining a minimum of three layers of fabric together either through stitching manually using a needle and thread, or mechanically with a sewing machine or specialised longarm quilting system. A quilting shop showcases the work of many creative people with a variety of patterns and styles.