Backing Fabric Piecing Guide — How to Piece a Quilt Backing

Most quilts require a backing larger than any single fabric piece. Piecing a backing is simple — but there’s a right way and several wrong ways. Here’s the complete guide.

Linda’s Electric Quilters Fabric Expert Guide

Backing Piecing Methods Compared

Method Best For Notes
Horizontal center seam Lap and throw quilts Most Common Two equal panels joined at center — seam runs horizontally
Vertical center seam Quilts where horizontal seam would be distracting Works well for some backing prints
Three-panel backing Bed quilts needing extra width Bed Quilts Center full width + two side strips — no center seam
Scrappy pieced backing Using leftover fabrics from the top Scrappy Can be a design feature — tells the quilt’s fabric story
108" wideback — no seam Any quilt up to ~96" wide Simplest Most efficient for longarm work
▶ Our Recommendation For longarm work, 108" wideback with no seam is the fastest and cleanest option. For 44" cotton backings, the three-panel method (full width center + two side strips) avoids the awkward center seam and produces a professional result. Press all backing seams open to prevent ridges under the quilting.
Should I press backing seams open or to the side?

Open — always for quilt backings. Seams pressed to the side create a ridge that shows through the front of the quilt as a raised line, especially under dense quilting. Open seams lie flat and are invisible from the front.

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