Flannel makes a warm, soft quilt, and it is a favorite for rag quilts. It is brushed cotton, so it adds cozy loft to a quilt top, a backing, or a frayed rag design. The trade-off is that it frays and can shrink, so you prewash it and sew with a slightly longer stitch. Here is how to use it well.
Is flannel good for quilting?
Yes. Flannel is quilting cotton with a brushed surface, so it quilts much like regular cotton but feels warmer and softer. It is the standard choice for rag quilts and cold-weather quilts. Its frayed edges and shrink are the only habits to plan around.
- Softness: the brushed nap gives a quilt a cozy, worn-in hand.
- Warmth: the raised fibers trap air, so a flannel quilt runs warmer.
- Fraying: cut edges shed threads, which rag quilts use on purpose.
- Care: prewash to preshrink, then wash finished quilts on a gentle cycle.
Which flannel is best for a quilt?
Choose 100% cotton flannel for quilting. Cotton presses flat, holds a seam and frays cleanly for rag designs. Match the weight to the project and check the width before you buy, because a quilt back needs more width than a single panel gives.
- Fiber: 100% cotton over blends for pressing, piecing and clean fraying.
- Weight: a mid-weight flannel around 5 oz balances warmth with easy piecing.
- Width: a 60-inch flannel pieces most tops; wider backs are joined from panels.
- Prewash: wash before cutting for bed quilts; skip it only for rag quilts.
| Spec | EOVEA Cotton Flannel | Why it matters for quilting |
|---|---|---|
| Fiber | 100% cotton, brushed | Presses flat, frays cleanly for rag seams. |
| Weight | 5 oz (about 170 g/m²) | Warm but still easy to piece and press. |
| Width | 60" | Pieces most tops; join panels for wider backing. |
These are EOVEA's own cotton flannel specs. For a fuller breakdown of the fabric itself, see our cotton flannel guide.
How do you make a flannel rag quilt?
A rag quilt is built to fray. You sew the seams on the outside instead of hiding them, clip them, then wash the quilt so the exposed edges fluff into soft fringe. Flannel is the classic choice because cotton frays into an even, soft rag.
- Cut squares: cut flannel and batting into equal blocks, layered flannel-batting-flannel.
- Sew seams out: join blocks with the seam allowance on the front, not the back.
- Clip the edges: snip each seam allowance every quarter inch without cutting the stitches.
- Wash to fray: machine wash and dry so the clipped edges bloom into a soft fringe.
Can you use flannel for quilt backing?
Yes, and it is a popular way to make a quilt warmer on the back. The one thing to plan is width. Most quilt backs are wider than 60 inches, so you sew two lengths of flannel together into a panel rather than buying a single extra-wide back.
- Width: our flannel is 60 inches, so most backs use two joined panels.
- Warmth: a flannel back turns any quilt into a cozier, heavier throw.
- Prewash: preshrink the backing so it shrinks with the top, not against it.
Do you need to prewash flannel before quilting?
Prewash flannel for any quilt you piece precisely. Cotton flannel can shrink a few percent and release loose dye in the first hot wash. A cold wash and low-heat dry before cutting removes that risk. Rag quilts are the exception, because you want that first-wash shrink.
- Shrinkage: preshrinking stops a finished quilt from puckering unevenly.
- Color: a prewash rinses out excess dye so darks will not bleed onto lights.
- Softness: washed flannel is softer and more stable to cut and sew.
Does flannel fray when you quilt with it?
Yes, flannel frays more than smooth quilting cotton because the brushed surface loosens threads at the edge. For pieced quilts you manage it; for rag quilts you rely on it. Either way, a slightly longer stitch and a quarter-inch seam keep the piecing secure.
- Pieced quilts: use a 1/4-inch seam and press seams to control fraying.
- Rag quilts: clip the exposed seams so the fraying becomes the design.
- Stitch length: lengthen the stitch slightly so seams hold as edges soften.
What are easy flannel quilt patterns for beginners?
Start with a pattern that hides small imperfections, because flannel shifts more than smooth cotton. Large simple blocks are more forgiving than tiny detailed piecing. These three styles suit flannel and a first quilt.
- Rag quilt: squares with exposed, clipped seams; the easiest flannel start.
- Simple square patch: large blocks in a grid with straight seams.
- Strip or rail fence: sewn strips that need only straight lines, not points.
How much flannel do you need for a quilt?
Yardage depends on the quilt size, the block size and whether you back it in flannel too. A lap quilt uses a few yards; a full flannel back adds several more. Measure your finished size, then add seam allowance and a margin for shrink.
- Top: total your blocks plus seam allowance for the pieced front.
- Backing: add panels to exceed the finished width, since flannel is 60 inches.
- Margin: buy a little extra for prewash shrink and squaring up.
Our yardage guide walks through the math with examples.
By the yard or by the roll — which fits your quilt?
Buy by the yard for a single quilt and by the roll when you make several or back large quilts. A roll gives one continuous run in one color, which keeps a big backing consistent. A few yards is enough for a lap top.
- By the yard: one quilt or scrappy, multi-color blocks.
- By the roll: repeat projects, group sewing or large flannel backings.
Shop EOVEA flannel: tartan flannel by the yard, solid brushed flannel by the yard, tartan flannel rolls, and solid flannel rolls.
Flannel quilting — frequently asked questions
Do you have to prewash flannel before quilting?
Prewash flannel before piecing a bed or gift quilt. Cotton flannel can shrink and release loose dye in the first hot wash, so a cold prewash and low-heat dry preshrinks it and keeps colors clean.
Is flannel or regular cotton better for quilting?
Both are cotton. Regular quilting cotton is smoother and more precise for intricate piecing. Flannel is brushed, so it is warmer and softer but frays more and needs a prewash and a slightly longer stitch.
Can you use flannel as quilt backing?
Yes. Flannel backing makes a quilt warmer and softer on the back. EOVEA flannel is 60 inches wide, so for a backing wider than 60 inches you sew two panels together rather than buying a single extra-wide piece.
What flannel is best for a rag quilt?
Use 100% cotton flannel for a rag quilt. Cotton frays into a soft, even fringe when you clip and wash the seams, which is exactly the ragged texture a rag quilt is built around.
Does flannel shrink after you quilt it?
Cotton flannel can shrink a few percent in a hot wash. Prewash to control it, or leave it unwashed on a rag quilt so the first wash shrinks and frays the seams together for a crinkled, cozy finish.