The Simpson CBSTQ46-SDS2HDG CBSTQ Hot-Dip Galvanized Standoff Column Base is a cast-in-place column base engineered by Simpson to deliver enhanced strength and stability for 4x6 wood posts in residential and light commercial construction. Built with a code-required 1 in. standoff and a hot-dip galvanized finish, this column base provides a dependable solution for creating secure, moisture-resistant post-to-concrete foundation connections in exterior and pressure-treated-wood applications.

Key Features

• Code-required 1 in. standoff design - elevates the post above the concrete surface, protecting the post end from direct moisture contact and significantly reducing the risk of moisture-related post-end rot over time
• S-shaped bearing tabs - provide increased strength, allowing for higher downloads and a more robust connection between post and foundation
• Includes (14) 1/4 in. x 2 in. Strong-Drive SDS Heavy-Duty Connector screws - deliver a greater wood net section area than bolts, meaning less material is removed from the post and overall connection strength is improved
• Hot-dip galvanized finish - offers extra corrosion resistance purpose-built for exterior installations and applications involving pressure-treated wood, where standard coatings fall short
• Dual-gauge steel construction (base 12, strap 10) - pairs heavier strap gauge with a solid base to balance flexibility and load-bearing capacity where each is needed most

Why This Product

• Built-in moisture protection from day one - the 1 in. standoff keeps the post end clear of the concrete, directly addressing one of the most common causes of long-term post deterioration in outdoor and ground-level installations
• Everything needed for installation is included - the fourteen Strong-Drive SDS screws ship with the base, so there are no additional fastener purchases required to complete the connection
• Hot-dip galvanization adds meaningful longevity - the HDG finish goes beyond standard coatings to provide extra corrosion resistance, making this column base a practical choice for coastal, exterior, or chemically treated-wood environments where hardware is exposed to harsh conditions
• Higher load capacity through proven engineering - the S-shaped bearing tabs and heavy-duty SDS fastener pattern work together to support greater downloads than earlier column base designs, giving builders confidence in the connection's structural performance

Specifications

• Model Number: CBSTQ46-SDS2HDG
• Member Size: 4x6
• Gauge: Base 12; strap 10
• Width 1: 3-9/16 in.
• Width 2: 5-5/16 in.
• Height: 8-11/16 in.
• Depth: 7-13/16 in.
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Country of Origin: United States

Approved Applications

• Residential construction requiring secure wood post-to-concrete foundation connections
• Light commercial construction projects requiring cast-in-place column base support
• Exterior installations where enhanced corrosion resistance is required
• Applications involving pressure-treated wood where hot-dip galvanized hardware is specified

What's Included

Each pack contains (1) CBSTQ46-SDS2HDG Hot-Dip Galvanized Standoff Column Base, (14) 1/4 in. x 2 in. Strong-Drive SDS Heavy-Duty Connector screws.

Frequently Asked Questions

Why does this column base have a 1 in. standoff?

The code-required 1 in. standoff design elevates the post above the concrete surface, protecting the post end from direct moisture contact and significantly reducing the risk of moisture-related post-end rot over time.

What fasteners are used to install the CBSTQ46-SDS2HDG?

Installation requires (14) 1/4 in. x 2 in. Strong-Drive SDS Heavy-Duty Connector screws, which are included with the column base. These screws provide a greater wood net section area than bolts, contributing to a stronger overall connection.

Why is the hot-dip galvanized finish important for this product?

Hot-dip galvanization (HDG) offers extra corrosion resistance, making this column base well-suited for exterior applications and use with pressure-treated wood, where standard coatings may not provide adequate long-term protection.

What role do the S-shaped bearing tabs play in this column base?

The S-shaped bearing tabs are a structural feature that provides increased strength to the connector, allowing for higher download capacities compared to previous column base models without this design element.

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