Simpson CBST66Z 6x6 CBST Column Base w/Standoff - ZMAX Strong-Drive SDHR Combo-Head Screws The versatile GAC assembly consists

The versatile GAC assembly consists of a smooth-shank fastener attached to a 90° angle

The Simpson QDPROLDHG2 auto-feed Underlayment/Backerboard attachment is designed to quickly and precisely install cement board to underlayment

10" into the center of the post

The shank is engineered to accommodate the swelling and shrinkage common with fast-growth lumber

Simpson CBST66Z 6x6 CBST Column Base w/Standoff - ZMAX Strong-Drive SDHR Combo-Head Screws The versatile GAC assembly consistsThe Simpson Strong Tie CBST Column Base with ZMAX finish is designed for anchoring wood columns to concrete while providing protection in environments prone to moisture exposure. Its elevated standoff base helps prevent rot and decay by lifting the column 1" above concrete, while the ZMAX galvanized coating offers enhanced corrosion resistance for outdoor and treated lumber applications. The CBST is cast for strength and engineered to handle demanding