Change the foot on the sewing machine to the zipper foot.
How to make a bench cushion cover with a zipper.
On the underside of the fabric place the elastic over the raw edge of your fabric that you had folded and pressed earlier.
Pick a starting point.
With straight pins pin your zipper facedown with the teeth right on the seam.
Making a bench cushion without zippers or velcro can be done in the space of an afternoon or evening.
If the original cushion insert will be used measure the width of the original boxing strip between the seams and add 1 for seam allowances.
Excess length will be cut off during construction.
Sew these two pieces together all the way around at the edge.
Your zipper needs to be wrong side up sewn onto the wrong side where the seam allowance shows.
Open your zipper a little so you don t sew it completely shut.
The top piece and the bottom piece with the zipper.
To do this measure how long and wide the cushion is that you are covering.
Measure across the top from front to back.
For a cushion with a zipper closure cut the boxing strip with the length equal to the measurement of the front and sides of the cushion.
Place your cushion on a flat surface.
Sew back and forth a couple of times at both ends of the zipper.
Cut out your fabric pieces.
Now it s time to sew the zipper.
Repeat on the other side.
So zipper should face towards the middle.
Then add 1 inch to each of those measurements for the final cutting length and width.
The elastic will cover up and protect the raw edge so it does not fray as much over time.
This method insures a crisp sturdy cushion cover that s easily removable for cleaning.
With the zipper foot close to the zipper sew down the length making sure the center of the zipper remains in line with the seam.
Press all the seams open with your iron at the heat setting appropriate for your fabric.
Place your top and bottom pieces together right sides facing in.
Then align your zipper to the front piece pinning it face down on the good side of the fabric at the bottom edge.
Their measurements are equal to the measurements of your inner cushion.
You may have to stop and move the pull tab so it s not in the way.
First cut out two pieces of fabric.
Assemble the items needed.
To make this invisible zipper cushion cover these steps are adapted from katie of sew katie did.