Simpson Strong Tie Simpson Strong Tie PBS66 12-Gauge 6-inch by 6-inch Standoff Post Base Embeds in wet concrete after pour and is made to install flush with the concrete surface Embossment in the seat of the base gives increased strength Stress relief holes under the base resist tearing during loading Features a 1 in. standoff height, reducing the potential for decay at post and column ends Nominal Post Size: 6x6