Lloyd and I both like sitting on the floor so when we needed some extra seating for a party, we decided to make floor cushions. First, I ordered some 4″ upholstery padding, some black cordura, and 7.5 feet of upholstery zippers. Once they arrived, I pinned up a mock-up of the cover. I wanted to sew the covers from two folded rectangles with a zipper on the small side, but encountered a problem: the padding would not slide across the fabric. I tried both sides of the cordura, including the slick side, and no sliding. So the padding would have to be placed in the cover and then zipped in place.
A quick redesign later, and I had this:

Fold along the dashed lines. Sew numbered sides to the corresponding number and attach the zipper to the dotted sides.
A pinned together mock-up worked well and looked great so I sewed it all together.
So far I’ve only made two of the floor cushions. We have the padding for two more, but I ran out of zipper. Each cushion needs about 84″ of zipper! The plan is to cover the last two cushions in upholstery fabric, so I’m holding off until I find a good fabric store here. In the meantime, our two floor cushions are getting a lot of use!