The Simpson CC3 1/4-6HDG Column Cap is a hot-dip galvanized structural connector built for reliable column-to-beam connections in wood-frame construction. Engineered for use with a 3-1/8 in. beam width and a 6x post, this column cap is designed to transfer loads efficiently between post and beam assemblies while standing up to demanding structural environments. With certified welds, bolt spacing that meets NDS code requirements, and an extended seat that maximizes bearing surface, it is a dependable choice for seismic zones, high-wind regions, and exposed outdoor applications where corrosion resistance is a priority.

Key Features

• Hot-dip galvanized finish - provides durable corrosion resistance, making this column cap a practical fit for outdoor, exposed, and weather-prone construction environments.
• Certified welds - give builders and inspectors confidence in the strength and load-bearing integrity of every connection.
• Increased uplift load capacity - supports applications subject to earthquake or high-wind forces, helping structures meet safety requirements in demanding load conditions.
• Bolt spacing meeting NDS code requirements - simplifies the inspection and approval process by keeping connections in compliance with established standards.
• Extended seat design - distributes beam load across additional bearing surface beyond each side of the column, improving connection support and performance.
• Adjustable strap configuration - accommodates standard, custom, and rough-cut lumber dimensions, adding versatility across a range of post and beam assembly projects.
• Simpson engineering and domestic production - delivers consistent quality for structural connectors where performance and reliability are non-negotiable.

Why This Product

• Built for code-sensitive structural work - certified welds and NDS-compliant bolt spacing make the CC3 1/4-6HDG well-suited for projects where inspection readiness and load documentation matter.
• Reliable in high-stress load conditions - rated for increased uplift loads under seismic and high-wind conditions, this column cap is a practical choice for construction in areas with strict structural requirements.
• Versatile fit for non-standard lumber - the adjustable strap configuration supports standard, custom, and rough-cut lumber sizes, reducing the need for workarounds on projects with non-typical dimensions.
• Corrosion resistance for long-term performance - the hot-dip galvanized finish makes this connector a sound investment for outdoor post and beam assemblies where exposure to moisture and the elements is ongoing.

Specifications

• Model Number: CC3 1/4-6HDG
• Finish: Hot-Dip Galvanized
• Beam Width: 3-1/8 in.
• Height 1: 6-11/16 in.
• Width 1: 3-1/4 in.
• Length: 11 in.
• Width 2: 5-1/2 in.
• Post Size: 4x6
• W1 Dimension: 3-1/4 in.
• W2 Dimension: 5-1/2 in.
• L Dimension: 11 in.
• H1 Dimension: 6-1/2 in.
• Bolt Size: 5/8 in.
• Country of Origin: United States

Approved Applications

• Column-to-beam connections in wood-frame construction
• Structural post and beam assemblies requiring certified load-bearing connections
• Applications subject to seismic or high-wind uplift loading
• Outdoor or exposed construction environments where corrosion resistance is required
• Projects using standard, custom, or rough-cut lumber requiring adjustable strap configurations

Options

• Contact us for Configurable Options and Special orders
• Straps may be rotated where W1 != W2.
  
• For special, custom, or rough-cut lumber sizes, provide dimensions. An optional W2 dimension may be specified. (The W2 dimension on straps rotated 90 deg. is limited by the W1 dimension.)

Frequently Asked Questions

What beam width and post size is the CC3 1/4-6HDG designed for?

The CC3 1/4-6HDG is engineered specifically for use with a 3-1/8" beam width and a 6x post. The W1 dimension is 3-1/4 in., the W2 dimension is 5-1/2 in., and the overall L dimension is 11 in., with an H1 dimension of 6-1/2 in.

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

The hot-dip galvanized finish provides corrosion resistance, making the CC3 1/4-6HDG suitable for use in exposed conditions or applications involving treated lumber, where standard finishes may degrade over time.

What is the purpose of the extended seat design on this column cap?

The extended seat design provides additional bearing surface area beyond each side of the column, which helps distribute load from the beam more effectively and maximizes connection support in structural post and beam assemblies.

Does the CC3 1/4-6HDG meet recognized structural and code standards?

Yes. The CC3 1/4-6HDG features certified welds, bolt spacing that meets NDS code requirements, and increased uplift load ratings suited for earthquake or wind loading conditions, making it appropriate for demanding structural wood-frame construction applications.