A sewing machine cover protects your machine from dust and keeps it ready to use
A sewing machine cover is a fabric box that sits over your machine when it is not in use. It blocks dust, pet hair, and accidental spills—the three things that damage machines most. You can buy one, but making your own takes about two to three hours and costs five to fifteen dollars in fabric. The finished cover fits your specific machine exactly, looks the way you want it to, and teaches you how fabric pieces go together.
This guide walks you through measuring your machine, cutting fabric, sewing the pieces, and finishing the edges so the cover lasts. You will need a sewing machine, basic thread, scissors, and fabric. No pattern is required—you will draft your own measurements straight onto the cloth.
Key Takeaways
- Measure your machine's height, width, and depth, then add one inch to each measurement to account for seam allowance and a loose fit.
- Cut four fabric pieces: a front, back, two sides, and a bottom piece, using your measurements as a guide.
- Sew the pieces together using a straight stitch at a quarter-inch seam allowance, starting with the sides to the front and back.
- Finish the top edge by folding the fabric inward twice and sewing it down to prevent fraying and give the cover a polished look.
- Test the cover on your machine before trimming threads; it should slip on and off easily without forcing.
Measure your machine and plan the cover size
Place your sewing machine on a flat surface and measure three dimensions: the width (left to right), the depth (front to back), and the height (bottom to top). Write these numbers down. Use a soft measuring tape if you have one, or a ruler and a piece of string—mark the string where it reaches the end, then measure the string against a ruler.
Add one inch to each measurement. This extra inch becomes the seam allowance (the fabric that gets sewn together) and gives you a loose fit so the cover slides on without forcing. For example, if your machine is 16 inches wide, 8 inches deep, and 10 inches tall, your cover will be 17 inches wide, 9 inches deep, and 11 inches tall.
Sketch a straightforward diagram on paper showing these three numbers. You do not need to draw to scale—just a rectangle with the measurements labeled. This becomes your cutting guide.
Choose and prepare your fabric
Cotton quilting fabric, cotton canvas, or linen work best for a machine cover. These fabrics are sturdy enough to hold their shape and block dust effectively. Avoid stretchy fabrics like jersey or knits—they sag and do not protect well. Visit a fabric store or order online; you will need about one and a half yards of 45-inch-wide fabric, which costs roughly five to ten dollars.
Wash and dry your fabric before cutting if the label says it can be washed. This prevents shrinking later. If the fabric is wrinkled, press it flat with an iron on medium heat. Lay it out on a clean, flat surface—a large table, a bed, or the floor works fine.
Cut the fabric pieces to size
You will cut five pieces: a front, a back, two sides, and a bottom. Use your measurements from step one as your guide. A ruler, a measuring tape, and a pencil or fabric marker help you mark straight lines. Cut slowly and keep the scissors perpendicular to the fabric so the edges stay straight.
Front and back pieces: Cut two rectangles that are your width measurement by your height measurement. For the example above, that is 17 inches by 11 inches each.
Side pieces: Cut two rectangles that are your depth measurement by your height measurement. For the example, that is 9 inches by 11 inches each.
Bottom piece: Cut one rectangle that is your width measurement by your depth measurement. For the example, that is 17 inches by 9 inches.
After cutting, lay all five pieces on your table and double-check that matching pieces are the same size. Uneven pieces make the cover crooked.
Sew the sides to the front and back
Thread your sewing machine with thread that matches your fabric color. Set the stitch length to medium (around 2.5 millimeters) and the stitch type to straight stitch. Test the tension on a scrap of fabric first—the thread should not bunch or skip.
Place the front piece flat on your work surface with the right side (the pretty side) facing up. Lay one side piece on top of it, right side down, so the edges line up. Pin them together along one long edge using three or four pins spaced evenly. The pins hold the pieces still while you sew.
Sew along that edge using a quarter-inch seam allowance. This means the needle should be one quarter inch away from the edge of the fabric. Sew slowly and keep the edge straight by watching the fabric, not the needle. When you reach the end, backstitch three or four stitches to lock the thread. Remove the pins and open the two pieces flat—they are now connected along one edge.
Repeat this process to attach the other side piece to the opposite edge of the front piece. Then attach both side pieces to the back piece the same way. You now have a U-shaped piece with the front, back, and two sides all connected.
Attach the bottom and finish the seams
Lay your U-shaped piece flat. The bottom opening should face up. Place the bottom piece on top with the right side down, and pin it to all three edges of the opening. Sew around all four sides of the bottom piece using the same quarter-inch seam allowance. Backstitch at the corners and at the end.
You now have a complete box. Turn it right side out by reaching through the top opening and pulling the fabric through. Push the corners out gently with your fingers so they are sharp and square. The cover should now look like a fabric box with the pretty side facing out.
Trim any loose threads with scissors. Press the seams flat with an iron on medium heat if they look wrinkled.
Finish the top edge to prevent fraying
The top opening has raw fabric edges that will fray over time. Fold the raw edge inward by half an inch all the way around the opening. Pin it in place. Sew along this fold using a straight stitch, staying close to the fold—about one eighth inch away. This is called a rolled hem and it seals the edge.
If you want a more finished look, fold the edge inward a second time by another half inch, pin it, and sew again. This creates a double-folded edge that looks polished and lasts longer.
Trim any remaining loose threads.
Test the cover on your machine
Lift your sewing machine and carefully slide the cover over it. The cover should fit snugly but not tightly—you should be able to slide it on and off without forcing or tugging. If it is too tight, the seams may tear when you put it on. If it is too loose, dust will get inside.
If the fit is not right, you can adjust it. If it is too tight, carefully cut a small slit in one side seam, add a strip of fabric to widen that seam, and sew it back together. If it is too loose, take in the seams by sewing a new line one quarter inch closer to the edge, then trim away the old seam. These fixes take 15 to 30 minutes.
Once the fit is correct, your cover is finished and ready to use. Store it in a drawer or hang it on a hook when your machine is not in use.
Frequently Asked Questions
Can I make a cover without a sewing machine?
Yes, but it takes much longer. Hand-sewing with a needle and thread works, though the stitches will be visible and less even. Use a backstitch, which is the strongest hand-sewing stitch. Expect the project to take six to eight hours instead of two to three.
What if my sewing machine has a handle or unusual shape?
Measure around the handle and add that height to your machine's total height measurement. For odd shapes, measure the widest and deepest points. If your machine has feet that stick out, measure to the outer edge of those feet. The cover will be slightly larger than the machine itself, which is fine—it still protects.
Can I use old sheets or clothing instead of new fabric?
Yes. Old cotton sheets, old jeans, or old cotton shirts work well. Wash and dry them first, then cut and sew the same way. Thicker fabrics like denim may require a heavier needle (size 16 or 18) and slightly slower sewing speed.
How do I keep the cover from sliding off?
A snug fit usually holds the cover in place. If it still slides, sew a strip of elastic or a drawstring into the top seam before you finish the edge. The elastic or string cinches the opening slightly and keeps the cover from shifting.
What should I do if the seams come apart?
Seams usually fail because the thread was too loose or the fabric was pulled during sewing. Carefully cut away the old thread, line up the pieces again, and sew a new seam one quarter inch closer to the edge. Trim the old seam allowance away with scissors.