I’ve been using this site for several years for various building projects around our small acreage. Might be useful for RR projects as well.
http://www.blocklayer.com/default.aspx
Click on Calculator Directory for a full listing of tools.
Interesting, will book mark it.
Thanks I bookmarked that link, I can use that at work.
Cool. Thanks for sharing.
-Kevin.
Very cool! Useful for both modeling and “real life” projects.