Simpson Strong-Tie CB46 - Galvanized Column Base for 4x6 The CB is designed to connect posts to concrete foundations for a wide range of lumber, glulam, and engineered wood product sizes. This column base is either cast-in-place or wet set into the concrete where the bottom of the base plate sits flush with the concrete for full post bearing. The CB is ideal for columns that require high structural values and rugged performance. Features Increased uplift resistance for wind or seismic loading Bolt hole locations meet code-required spacing for optimal capacity Nominal column size: 4x6 Made from 7-gauge steel Galvanized (G90) for extra corrosion resistance USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.