I am pinning my boxing strip to the top and bottom of the seat cushion. I’ve measured precisely, but it always seems that the boxing strip is a little longer and I end up having to take tiny tucks together it. What am I doing wrong?

I am pinning my boxing strip to the top and bottom of the seat cushion. I’ve measured precisely, but it always seems that the boxing strip is a little longer and I end up having to take tiny tucks together it. What am I doing wrong?

Hey there. I totally feel your pain. All of my early box cushions and panels did this too! I learned it’s because the fabric layers move under the sewing machine at a different rate, causing it to slip and move as you sew. This is most cumbersome with domestic...