I measure across top,middle, and bottom of the quilt. Take the total of the three measurements and divide by three to get an average. Fold the top and the border fabric in half and pin in that spot. Fold the quilt top and border in half from center point (pin) and pin at that corresponding spot. Do it one more time (you now have 4-5 pins holding) for the top half of the quilt. Repeat on the other unpinned side of the top of quilt. Sew, easing in any fullness then press. Repeat the same process for the bottom of the quilt. For side borders, repeat the averaging process by measuring left, middle and right side of the quilt top. Cut borders and repeat pinning process and you're all done.