bkay

I've made a couple of disappearing 9 patch quilts, but they were I Spy quilts. So they were just whatever size they turned out to be as kids don't care.

Now, I want to make some to a specific size for lap quilts that our guild makes for nursing homes. The size I need to make is 38" to 40" by 44" to 48".

My brain gets flaky as I start adding up the 1/4 inches. After you sew the basic block, you've lost 12 quarter inches in the seams. So you are losing 1/2" to width and length. So now, if you started with a 15" block, you now have a 14 1/2" block.

If you do the basic cut across the middles, you lose a quarter inch in each direction and now have a 14 1/4" block.

Is that correct? So, if you are doing the basic D9P, no matter the starting size of the block, you are going to end up 3/4 inches less that you started with.

Did I figure that correctly?

bkay