Binding is the final step in finishing a quilt — it covers the raw edges of the quilt sandwich and gives it a clean, durable border. Here’s how to do it by hand or machine, plus how much fabric to buy.
What You’ll Need
- Binding fabric (see fabric calculation below)
- Rotary cutter, ruler, and cutting mat
- Sewing machine (or needle and thread for hand-finishing)
- Iron and ironing board
- Binding clips or pins
How Much Fabric Do You Need for Binding?
For standard double-fold binding, a good rule of thumb is: (perimeter of your quilt in inches ÷ 40) x width of fabric needed, typically cut into 2.5-inch strips. As a simpler estimate, most quilts need about 1/2 yard of fabric for binding on a lap-sized quilt, and closer to 3/4-1 yard for a queen or king-sized quilt. Always round up — running short mid-binding means an awkward extra seam.
Step-by-Step: How to Bind a Quilt
1. Cut and join your binding strips
Cut 2.5-inch wide strips across the width of your fabric. Join them end-to-end with diagonal seams (rather than straight seams) to distribute bulk and keep the binding looking clean, then press the seams open.
2. Fold and press the binding
Fold the joined strip in half lengthwise, wrong sides together, and press to create your double-fold binding strip.
3. Attach the binding to the quilt front
Starting a few inches from a corner, sew the raw edges of the binding to the front of the quilt using a 1/4-inch seam allowance. Leave the first few inches unsewn so you can join the ends later.
4. Miter the corners
When you reach a corner, stop 1/4 inch from the edge, backstitch, and fold the binding up at a 45-degree angle, then back down along the next side before continuing to sew. This creates the mitered corner fold.
5. Join the binding ends
When you get back to your starting point, trim the binding ends so they overlap by about 2.5 inches (the width of your strip), join them with a diagonal seam, trim the excess, and sew the remaining section closed.
6. Fold to the back and finish
Fold the binding over the raw edge to the back of the quilt and either machine-stitch it in place from the front (stitch-in-the-ditch), or hand-stitch it down for an invisible finish. Hand-stitching takes longer but gives the cleanest look.
Frequently Asked Questions
Can I bind a quilt entirely by machine? Yes — many quilters attach binding to the front by machine, then flip it to the back and machine-stitch it down from the front using a stitch-in-the-ditch technique. It’s faster than hand-finishing and holds up well to washing.
How do I wash a quilt after it’s finished? Wash on a gentle or delicate cycle in cold water with mild detergent, and either air dry flat or tumble dry on low. Avoid harsh detergents and high heat, which can fade colors and weaken stitching over time — especially for quilts with hand-quilted or vintage fabric.
What’s the difference between single-fold and double-fold binding? Double-fold binding (used above) is folded twice for extra durability and is the standard for quilts that will be washed and used regularly. Single-fold binding uses less fabric but wears out faster, so it’s better suited for wall hangings or decorative pieces.