Common protective treatments include galvanized steel (often paired with a rust-inhibiting primer), powder coating—frequently UV-resistant—and proprietary anti-rust black finishes. These coatings help improve outdoor durability and resist corrosion on pergola base brackets.
Kits commonly include mounting bolts, concrete anchors, wood screws and self-tapping screws. Many listings advertise a full hardware kit so you can mount the base to wood or concrete without buying additional fasteners—check the product details for exact contents.
Look for a four-sided reinforced base or full-wrap post-anchor design, pre-drilled mounting holes with included hardware for secure attachment, and—on ground-level arbors—included ground stakes. These features help prevent wobble and ensure a stable connection.
Integrated pergola bases are often powder-coated aluminum. Standalone bases and bracket kits are typically made from steel or carbon steel and are finished with protective coatings (for example, powder coating or anti-rust treatments) to resist corrosion.
Raised post bases lift the post above ground level to keep the end grain dry, prevent standing water from wicking into the wood, and provide a stable connection—actions that help extend the life of the post.