Open your zipper a little so you don t sew it completely shut.
How to make a bench cushion cover with a zipper.
Your zipper needs to be wrong side up sewn onto the wrong side where the seam allowance shows.
Excess length will be cut off during construction.
With straight pins pin your zipper facedown with the teeth right on the seam.
Then add 1 inch to each of those measurements for the final cutting length and width.
First cut out two pieces of fabric.
Pick a starting point.
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.
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.
So zipper should face towards the middle.
Double that number and add 1 inch to get the length of fabric you need for the top and bottom pieces plus the seam.
Measure across the top from front to back.
Cut out your fabric pieces.
Sew these two pieces together all the way around at the edge.
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.
The elastic will cover up and protect the raw edge so it does not fray as much over time.
On the underside of the fabric place the elastic over the raw edge of your fabric that you had folded and pressed earlier.
Their measurements are equal to the measurements of your inner cushion.
Place your cushion on a flat surface.
Repeat on the other side.
To do this measure how long and wide the cushion is that you are covering.
Making a bench cushion without zippers or velcro can be done in the space of an afternoon or evening.
Sew back and forth a couple of times at both ends of the zipper.
This method insures a crisp sturdy cushion cover that s easily removable for cleaning.
You may have to stop and move the pull tab so it s not in the way.
To make this invisible zipper cushion cover these steps are adapted from katie of sew katie did.
Now it s time to sew the zipper.
Tape multiple sheets of paper together so you end up with one large piece of paper that is big enough to cover the top of your cushion.
The top piece and the bottom piece with the zipper.
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.
Press all the seams open with your iron at the heat setting appropriate for your fabric.