QUILT WIDE BACKSisa type of fabric that is typically used as a single piece to cover the back of a quilt without needing to piece together multiple fabrics. It is usually available in widths of 108" (2.7 M) or wider, which makes it a convenient option for quilters who are making large quilts and don't want to have to piece together multiple widths of fabric to cover the back of the quilt.
Wide back fabric is also sometimes used for other large-scale sewing projects, such as home decor items like curtains or tablecloths. Because it comes in a wider width, it can save time and effort compared to using standard-width fabrics that would require more seams and piecing to achieve the desired size.