Just recently joined this site from Iowa...mainly because I would like to have information on how to construct a quilt block to display on a barn or shed. I'm looking for step by step instructions. Anyone out there that can help me? I would appreciate any & all information.

Welcome to the board from Southern California!!!!
Hopefully someone here can help you.

Welcome!
I am by no means, an expert... but my thought would be to paint it on plywood and then mount it on the barn. I am sure there are experienced people who can guide you better than I.

Greetings from Seattle

Try googling barn quilts. You should get some info or contacts.

We have beeen travelling extensively in the US and Canada and many++++++barns have quilt blocks on them and the majority that I have seen have been painted right on the barn. I did see one that appeared to be on wood and then mounted on the barn.

Here's a whole blog of barn quilt blocks.
http://cre8tivequilter.blogspot.com/feeds/posts/default

Welcome from Kentucky!

Hi, welcome from Minnesota!

Hello and welcome from TN