1st Size: 1-1/2" 2" 2-1/2" 3" 4" 5" 6" 7" 8" 10" 12" 14" 16" 2nd Size: 3/4" 1" 1-1/2" 2" 3" 4" 5" 6" 8" Length: 40' 48' 20' 24' Wall: 16 GA 14 GA 11 GA 3/16" 1/4" 5/16" 3/8" 1/2"