Originally Posted by
maviskw
Then sew them together staggered, with the background fabric extending 1/4" beyond the tips of the bricks, and using a rotary cutter and ruler, slice off any extra beyond that 1/4" seam allowance. EXAMPLE: a 4 1/2" x 2 1/2" rectangle with 2 1/2" x 3 1/2" ends will give you an approx 4 1/4" wide border
EXAMPLE: a 6 1/2" x 3 1/2" rectangle with 3 1/2" x 4 1/2" ends will give you an approx 6 1/4" border
The end pieces are not square with this pattern. I think I would make one exactly like their measurements before I went off on my own with other measurements.
Thank you for the further clarity, you are right the end pieces should be your measurements not mine.