: If your zipper tape isn't quite long enough, you can "extend" it by sewing fabric tabs to the ends, which also provides a cleaner finish for the edges.

To put together a "long piece" using a (zipper tape by the yard), you need to attach a slider to the teeth of the tape. This is a common technique for making custom-length zippers for large projects like upholstery cushions , bags, or outdoor gear. How to Assemble a Continuous Zipper

: If you are struggling to hold the slider while inserting the tape, try sliding the pull onto the prongs of a kitchen fork to hold it steady.

: Separate about 2–3 inches of the zipper tape at one end.

: Trim one side of the zipper teeth down by about 1/4 inch. This creates a "lead" that makes it easier to guide the slider onto the other side first. Insert the Slider :