MESSAGE RE FINISHED SIZES
I was asked tonight about the finished size of the quilt if we enlarge by the 1.42% to make the original block go up from 7in to 10in.
All this time, I have been thinking it would end up about 84/86in square and I have only just sat down and done the maths. (we have plural ones here, LOL) 6 x 10in blocks = 60in, 6 x 1.5in (narrow borders) = 9in, and 2 x 12in (wide borders)= 24, total is 93" square.
It's bigger than I thought, because I hadn't mentally enlarged the biggest border in keeping with the rest of the quilt. The original large border is 8.5in wide, so multiplied by 1.42% brings it out to a fraction over 12in.
If you want a slightly smaller quilt, you could leave off the final narrow border and that would bring it down to 90in square.
Very sorry about the earlier confusion. I hope the sums work out correctly now.