Today we are going to talk Casings. Perhaps you don't know what a casing is. A Casing in sewing is a cover that is created to enclose something like elastic or a ribbon. You might use a casing on a bag to enclose the ribbon or tie that is used to close the bag. Or you might have a casing on some pants to enclose the elastic so it doesn't touch the wearer. Both examples are uses of casings.
So how do you make a casing? It is actually very simple. Basically you are "rolling" or folding your fabric. You fold towards the wrong side a small amount. Then you fold again a larger amount. For instance, below you can see we folded the drawstring bag 1/4" all the way around, then we folded it again 1". It allows for the raw edges to be hidden while giving room for ribbon, ties or elastics to go through.
For each casing, there is a small opening, on a drawstring bag it is near the side seam. On pajama pants, like our Jean and Jamey Jammies, you can find the opening on the back of the casing. This is where the elastic is inserted.
On some pants, there may only be a casing on the back of the pants to give some stretch over the bum but keep them from falling off. The elastic is inserted at the side seam and pulled to the opposite side seam like in our Love Me Knot Shorts.
Casings are actually pretty simple. The most important detail to remember is making sure you measure your casing. If it says to fold 1/4", make sure you measure around the entire casing so it is even and not lopsided.