The Simpson Strong-Tie CBSQ46-SDS2HDG Hot-Dip Galvanized Column Base is a quick-install structural connector engineered to create a secure, code-compliant connection between 4x6 columns and concrete foundation footings. Built with a 1" standoff and supplied with Strong-Drive SDS Heavy-Duty Connector Screws, this column base is designed for structural posts in basements and in locations exposed to weather or water splash - delivering faster installation, a cleaner finished appearance, and preserved wood integrity at every connection point.

Key Features

• Quick-Install SDS Screw Fastening - Included Strong-Drive SDS Heavy-Duty Connector Screws replace traditional bolt-based installation, reducing labor time on the job site and getting structural connections done faster without sacrificing holding strength.
• 1" Standoff Height - Elevates the column base of the post off the concrete surface, meeting code requirements for structural posts in basements and areas subject to weather or water splash, helping protect the wood column from moisture contact.
• Hot-Dip Galvanized Finish - Provides a durable, corrosion-resistant coating suited for wet, outdoor, and exposed environments where long-term performance of the connector is critical.
• Greater Net Section Area Preserved - The SDS screw connection method maintains more of the wood column's net cross-section compared to traditional bolt holes, helping protect the structural integrity of the wood member at the connection.
• Reduced Reveal - The screw-based fastening system produces a lower-profile, cleaner finished appearance at the column base, which is particularly valuable in visible or finished installations.
• Engineered for 4x6 Column Connections - Precisely sized to fit 4x6 structural columns, this base transmits structural stresses directly to the concrete footing surface for a reliable, properly fitted load path.

Why This Product

• Faster Installation Without Compromise - The quick-install design with included SDS screws eliminates the setup complexity of traditional bolt-based column bases, saving time on the job site while still delivering a structurally sound, code-compliant connection for 4x6 posts.
• Built for Wet and Exposed Conditions - The hot-dip galvanized finish combined with the 1" standoff makes this connector a dependable choice for structural posts in basements and weather-exposed locations, where moisture resistance and proper elevation are both required.
• Protects the Wood Column's Strength - By using SDS screws rather than through-bolts, the connector preserves a greater net section area of the wood column, reducing the risk of weakening the post at its most critical connection point.
• Complete and Ready to Install - The package includes both the hot-dip galvanized column base and the Strong-Drive SDS Heavy-Duty Connector Screws, so all necessary hardware for the structural connection arrives together, reducing trips to the supply house mid-job.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CBSQ46-SDS2HDG
• Column Size: 4x6
• Finish: Hot-Dip Galvanized
• Standoff Height: 1"
• Fastener Type: Strong-Drive SDS Heavy-Duty Connector Screws
• Width 1: 3-9/16 in.
• Width 2: 5-5/16 in.
• Depth: 7-13/16 in.
• Height: 8-11/16 in.

Approved Applications

• Structural posts installed in basements
• Structural posts exposed to weather or water splash
• Connecting 4x6 columns to concrete footing surfaces
• Transmitting structural stresses from columns to concrete foundations

What's Included

• 1x CBSQ46-SDS2HDG Hot-Dip Galvanized Column Base
• Strong-Drive SDS Heavy-Duty Connector Screws

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

Frequently Asked Questions

What column size is the CBSQ46-SDS2HDG designed to fit?

This column base is engineered specifically for 4x6 column sizes, providing a secure and properly sized connection between the structural column and the concrete foundation footing.

Why does this column base use SDS screws instead of traditional bolts?

The included Strong-Drive SDS Heavy-Duty Connector screws offer several advantages over traditional bolt fasteners: they allow for faster installation that reduces labor time on the job site, provide a reduced reveal for a cleaner finished appearance, and preserve a greater net section area of the wood column - helping maintain the structural integrity of the wood member.

Is this column base suitable for outdoor or moisture-exposed installations?

Yes. The CBSQ46-SDS2HDG features a hot-dip galvanized coating that provides enhanced corrosion resistance, making it suitable for exposed and weather-prone environments. Additionally, its 1" standoff design meets code requirements for structural posts installed in basements or in locations exposed to weather or water splash.

Are fasteners included with the CBSQ46-SDS2HDG?

Yes, Strong-Drive SDS Heavy-Duty Connector screws are included with the column base, so no separate fastener purchase is required for installation.