JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. RR 22.06.00-3.4 Design of Lipped Sections per AISI 2016 The program can now design lipped sections (C shapes, Z shapes, and angles) per the 2016 edition of the AISI design code. Parent topic: RR 22.06.00-3 Features Affecting the Analysis and Design Engine Related concepts D1.E.1 Cross-Sectional Properties