Half Post & Column Base, 18-Ga. Steel, 6 x 6-In.6" x 6", 18 gauge, galvanized half post & column bases, secure the bottom of posts or columns to concrete & are perfect for decks or patio covers, dual purpose post cap base for light cap or base applications, provides a positive connection for a post to a wood deck, reduces the chance of the post splitting & eliminates nailing into end grain, zmax galvanization offers extra corrosion resistance for exterior & treated wood applications, install with