Hi all - I would like to find instructions for building flower boxes - any suggestions? Thanks!

Hi, cgg,
Here is a link:
http://www.dreamsalivemagazine.com/autumn2003/features/windowboxes/index.html
At the site, scroll down to the heading "Building Flower Boxes", also shows a picture of one on a wrought iron railing, with suggestions of materials needed.
I lived in an apartment many years ago, and bought some metal ones, inexpensive, with supports, for hanging on iron railings on a balcony. Worked great, with Petunias and some others.
You can also check with Lowe's in your local area, or some other gardening store, might have plans and designs, for building your own, and what you will need.
Best of luck, and have fun!