To Purchase the Stair Square please go to


This is a brand new stair layout tool for stringers 
for the going and risers for indoor and outdoor stair 
building.

ABC New Inventors The Stair Square
https://web.archive.org/web/20170112225010/http://www.abc.net.au/tv/newinventors/txt/s3241029.htm


email: stairsquare@gmail.com

http://www.toolstable.com