I've swapped a lot over the years and the blocks need to be within 1/4 inch of the stated size - slightly larger is better than too small. I usually make extras so that I can send something in that is within 1/8 inch of the requested size. I can't make a block that doesn't fit larger, but I can fudge to make it a teeny bit smaller. I hate when people cut blocks down because they always cut off the points. I can fudge, so please don't square them off!
Some people are really into extreme accuracy. More power to them. They are likely the award winners. I want to keep the fun in my quilting and if I had to be that exact, I'd drop swapping entirely. I try to be as accurate as I can. In all the years of swapping, only TWO blocks were not usable or adjustable- they were simply too small. I was able to remake one to make it larger, but the other I just stuck in my orphan block box to use on an orphan quilt.
Last edited by IAmCatOwned; 07-30-2012 at 02:21 PM.