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