Double Welt Cording
Before I do, I should probably remind you that I have never done anything like this before. Up to this point, my upholstery projects were limited to dining chairs and benches. Because of this, I started with a chair that 1) was found on the side of the road and 2) I used drop cloth for the upholstery. My thoughts were that if I decided to throw in the towel and kick this thing to the curb, there would be money wasted.
To prepare the drop cloth, I washed it twice soaking it an hour each time. Drop cloth right out of the package can be very stiff so unless you are using it for a project that requires a stiff fabric, I recommend washing it first.
To make the cording, I first measured how much I would need using the cording itself going around all of areas where cording is needed. Then I doubled that amount (because it is double cording). The beauty of drop cloth is that you can cut a tiny cut with scissors, then rip the rest which is much faster and precise than cutting with scissors.
First lay the strip of drop cloth out and place one piece of cording on the strip. Fold the cording over about half way as shown in the image above.