Tapered smooth or fluted steel and fluted aluminum poles sized with semi-flush standard handhole, typical base plate and anchor bolts. Pole taper rate is 0.14" per foot. Aluminum round non-tapered dimensions sized with flush handhole and typical base plate and anchor bolts. Base cover heights are nominal and differ minimally with application of reducer rings. See lines below for reducer ring breaks. Guideline sizing is based on Valmont commercial standards. Codes and customer standards may dictate pole specifications that would affect base cover fit, to verify selection contact the factory. Retrofit of base covers require detailed information from existing installation for factory to verify proper selection. For pole sizes not listed, contact the factory.