b'Plain and Square Smart Column Dimensions (in Inches)Col. SizeABCDEFGHILengths Avail. (ft.)6"5-1/2"6-3/4"2"8"1/8"1/4"5-1/16"3-1/2"3/8"7, 8, 98"7-1/2"8-3/4"2"8"3/16"1/4"7"3-1/2"3/8"7, 8, 910"9-1/2"10-3/4"2"8"3/16"1/4"9"3-1/2"3/8"7, 8, 9 * SmartColumns include SIM cap and base.*Pressure treated post not included23'