there should be 2 acceptable links to help you figure out how to make a shield similar to the shield that is shown in my previous two posts.  I could not find the blog that i used to help design my shield.
(I do not advise using 2 by 4's)

http://www.hurstwic.org/history/articles/manufacturing/text/viking_shields.html
http://www.vinlandvikings.org/Shieldconstruction.html

this is how my shield looks now

this is how my shield looks now. the detail in this image is poor but it is still possible to tell the difference.

my origional shield project

this is my shield . it no longer looks like this.