Mastering Elastic Edging: A Comprehensive Guide to Sewing Elastic on Sheet Corners
Adding elastic to sheet corners is a simple yet transformative sewing project that can instantly upgrade your bedding and make your sheets fit like a glove. This guide will walk you through the process, from gathering materials to the final stitch, ensuring a professional finish that's both comfortable and durable.
Gather Your Materials
Before you begin, make sure you have all the necessary materials within reach. Here's a list to help you prepare:
- 100% cotton sheet (for best results)
- 1/4" or 1/2" wide elastic (depending on your preference)
- Sewing machine with a universal needle (size 80/12 or 90/14)
- All-purpose polyester thread
- Scissors or rotary cutter and mat
- Straight pins or fabric clips
- Iron and ironing board
Measure and Cut Your Elastic
Measure the length of the sheet's corner, from one edge to the other, and add 1/2" for overlap. Cut your elastic to this length. For example, if your sheet corner measures 12", cut your elastic to 12.5".

Prepare Your Sheet
Lay your sheet flat on your work surface, right side facing up. Fold the corner over, creating a triangle with the raw edges meeting at the point. Press with an iron to create a crisp crease.
Optional: Create a Hem
For a more polished look, you can create a small hem along the edge of the triangle. Fold the raw edge over by 1/4", press, then fold again by 1/4". Stitch in place close to the inner fold.
Attach the Elastic
Place your elastic along the folded edge of the sheet, with the wrong side of the elastic facing the right side of the sheet. The elastic should be centered, with equal amounts of sheet fabric extending beyond each side.

Pin or clip the elastic in place, ensuring it doesn't shift while sewing. Starting at one end, stitch along the folded edge of the sheet, following the crease. Backstitch at the beginning and end for added strength.
Finish the Corners
Once you've sewn one side of the elastic, fold the sheet corner back over, hiding the elastic. Press with an iron to create a sharp crease. Topstitch along the new fold, close to the edge, to secure the corner in place.
Repeat this process for all four corners of your sheet. Once complete, give your sheet a final press, and you're ready to enjoy your new, perfectly fitted bedding.
Troubleshooting Common Issues
| Issue | Solution |
|---|---|
| Elastic is too loose or too tight | Adjust the width of your elastic or the overlap measurement to achieve the desired fit. |
| Elastic keeps shifting while sewing | Use fabric clips instead of pins to hold the elastic in place. Alternatively, use a walking foot on your sewing machine to help feed the elastic through evenly. |
| Corners don't look crisp after pressing | Try using a hammer or a tailor's ham to help create a sharp crease. You can also use a bit of starch to help hold the fold in place. |