Good things come to those who wait--that's my story and I'm stickin' to it. Here's that long-promised tutorial on reupholstering a chair cushion, including how to make your own welting. It's really easy as pie-- if you can sew straight lines you can do this. This is a pretty long tutorial, so I'm breaking it up into two parts-- gathering supplies and making welting and the sewing of the chair cushion.
You'll need the following:
Cording for making welting. This is sold in varying sizes at most craft and fabric stores. It looks like a long tube made out of braided unbleached cotton, and is sold by the yard and pre-packaged. I find mine near the curtain hardware and upholstery trim at my Joann's.
Small gauge pins-- I like to use applique pins because my machine can go over them without gumming up the needle or breaking the pins.
Zipper foot for your sewing machine-- this is very useful in making and attaching the cording.
Rotary cutter, straight edge and self-healing mat: while you can make it without these, these are such useful tools that I think anyone who sews at all should have them. I bought all of mine one at a time using the 40% off coupons that all the major craft and hobby stores offer.
Foam and batting--I used what came with the chairs-- foam is expensive! If you don't want to do this, you should bring your old foam to the store with you and have them trace and cut the new foam to fit for you-- they use electric knives that make it so much easier to cut it exactly. Cut a piece of batting to fit the top of your foam and use a few dots of fabric glue to hold it in place.
To make the welting, you will need to calculate the total number of inches around the top of the seat cushion-- for me that was 98". My cushions had welting at the top and bottom, meaning I would need 196" of welting, plus a few inches extra for allowances, which comes out to about 5 1/2 yards. My fabric was 60" wide, meaning I could get about 58" of welting out of each strip of fabric I cut. To make enough welting, I would need 4 strips of fabric that were 2" by 60".
To calculate your yardage, add up all your measurements
26 (seat tops) +32 (sides)+ 16 (welting)= 74"= roughly 2 1/4 yards.