Simpson CBST46HDG CBST Hot-Dip Galvanized Standoff Column Base for 4x6 is a cast-in-place column base engineered by Simpson Strong-Tie to provide a secure and durable connection between wood posts and concrete foundations in residential and light commercial construction. Its code-required 1 in. standoff design elevates the post above the concrete surface, significantly reducing the risk of moisture-related post-end rot and delivering long-lasting structural performance in demanding environments.

Key Features

• Code-required 1 in. standoff design that elevates the post above the concrete, protecting it from moisture and resisting rot
• S-shaped bearing tabs that provide increased strength, allowing for higher downloads
• Nominal column size: 4x6
• Steel gauge: base 12, strap 10
• Hot-dip galvanization (HDG) offers extra corrosion resistance for exterior and treated-wood applications

Specifications

• Model Number: CBST46HDG
• Member Size: 4x6
• Width 1: 3-9/16 in.
• Width 2: 5-5/16 in.
• Depth: 7-13/16 in.
• Height: 8-11/16 in.
• Gauge: Base 12; strap 10
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Install With: Install with (2) 5/8 in. diameter machine bolts (sold separately)
• Country of Origin: United States

Frequently Asked Questions

Why does the CBST46HDG have a 1 in. standoff design?

The code-required 1 in. standoff elevates the wood post above the concrete surface, preventing direct contact between the wood and concrete. This reduces moisture exposure at the post end, which is a primary cause of post-end rot and premature structural degradation.

What makes the hot-dip galvanized coating important for this column base?

Hot-dip galvanization (HDG) provides extra corrosion resistance, making the CBST46HDG suitable for exterior applications and use with treated wood, where standard coatings may not offer adequate protection against the elements or chemical exposure from preservative-treated lumber.

What hardware is needed to install the CBST46HDG?

The CBST46HDG is installed with (2) 5/8 in. diameter machine bolts, which anchor the base securely to the concrete foundation.

What construction applications is the CBST46HDG designed for?

The CBST46HDG is designed for residential and light commercial construction, providing reliable wood-to-concrete post connections with increased download capacity and stability across a variety of environments.

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.