Here is the size borders on my blog.The problem is now there are more of us if it gets sent to everyone it will be huge so when we get to the larger size borders we can make them smaller to prevent it from becoming a tent.LOL
As for those who are sending 2 smaller ones we can add any size because they go to less people. As to your center 18x18 or a little larger would be good.some have sent panels thats fine what we may have to do is if its getting to big we can pm the person or they can post how big they want the end result to be and if we need to skip someone we can.
Here's the link
http://www.quiltingboard.com/blogs/b...ize-b8351.html