4x4 Post Base Anchors, 10-Pack, 1-Inch Standoff

4x4 post base anchors deliver stable, elevated support for pergolas, patio covers, and porch railings while helping protect wood from ground moisture. This 10-pack fits standard 3.5 x 3.5 in posts with a 1 in standoff to improve drainage and airflow. Heavy-duty zinc-plated carbon steel with a powder-coated finish resists rust for long-term outdoor use, and U-shaped positioning holes make it easier to align posts during install.

• Fits standard 3.5 x 3.5 in wood posts with a snug inner size for reduced wobble


• Delivers 1 in standoff elevation to promote airflow and drainage under the post


• Includes 10 heavy-duty post brackets for multi-post pergolas, patios, and railings


• Enables fine alignment using U-shaped positioning holes for easier leveling


• Resists corrosion with zinc-plated, powder-coated carbon steel for outdoor durability

Upgrade your build with post base brackets designed for fast alignment and reliable support on concrete. The elevated base helps limit water exposure at the end grain, extending the usable life of deck and pergola posts. Use these concrete post anchors for patio structures, porch columns, railing posts, and other outdoor framing where stability and cleaner finishes matter. Stock up for your next project and grab yours today.

• Quantity: 10 pcs


• Inner dimensions: 3.53 x 3.56 in (89.6 x 90.5 mm)


• External dimensions: 3.78 x 3.56 in (96 x 90.5 mm)


• Overall size: 3.78 x 3.56 x 3.15 in (96 x 90.5 x 80 mm)


• Base-to-timber clearance: 1 in (25.4 mm)


• Material: carbon steel


• Wall thickness: 1.2 mm


• Finish: zinc-plated with powder coating


• Positioning holes: U-shaped


• Net weight (set): 7.06 lb (3.2 kg)