This is a Construction Part of a Structure. Here 7 types of cross sections are mentioned such that coupe 1-1,2-2,3-3,4-4,5-5,6-6,7-7 with proper dimension and diameter of Rod. At coupe 1 to 5 base length=80, coupe 6 lenght=210, coupe 7=140 For more information Check out the pages and download the Autocad DWg.file.