Quilting Dictionary Seam AllowancePiecingShare this Facebook Pinterest X WhatsApp Email Copy linkThe strip of fabric between the stitching line and the raw edge. Quilting almost always uses a scant 1/4" seam allowance. Scant 1/4" Seam Nesting Seams Y-Seam / Set-in Chain Piecing Scant 1/4 Inch Seam Allowance Diagram A seam stitched just 1–2 thread widths under 1/4" to account for fabric fold loss when pressed open or to one side. Scant 1/4" (Stitch) Standard 1/4" Edge Raw Fabric Edge Also see Quilting