The ABU66Z adjustable post base by Simpson Strong-Tie is designed for superior moisture protection and a finished hardware appearance, making it ideal for supporting 6x6 posts in decks, patios, and other permanent structures. Manufactured from durable ZMAX alloy steel for enhanced corrosion resistance, this 6x6 post base features a 1" standoff height above concrete floors, which is code-required for installations exposed to weather, water splash, or in basements. The standoff design helps reduce the risk of decay at post and column ends, ensuring long-lasting structural integrity. This 6x6 standoff post base is not intended to prevent rotation of members and is not recommended for non top-supported installations such as fences or unbraced carports. Easy to install, simply place the standoff base, insert the post, and fasten using nails, Strong-Drive SD Connector screws, or bolts. The base measures 5-1/2" W x 5" L x 6-1/16" H, with a 12-gauge base and 10-gauge strap for strength. Uplift capacity is 2,300 lb. and download capacity is 12,000 lb. This adjustable post base is a reliable choice for concrete post anchoring and deck construction projects.