I also bought a L ruler from the hardware store to use for apparel pattern making - it is a bit ackward. The first site is for a light weight alunimum one and the second site is for the apparel sewing-much more expensive. Since I sew a lot of garments, I invested in the second one that also has other rulers for pattern making.
http://sewtrue.com/Store/L-Square-P237.html - turn your vol. down-this site has annoying music
http://cgi.ebay.com/ws/eBayISAPI.dll...=263602_304652