The Simpson CC48HDG 4x Beam 8x Post Hot-Dip Galvanized Column Cap is a heavy-duty steel connector built by Simpson for reliable column-to-beam connections in wood construction. Engineered for use with a 4x8 post and a 4x beam, this column cap features an extended seat that increases bearing surface area beyond each side of the column, helping distribute load effectively while providing strong structural support. The hot-dip galvanized finish delivers superior corrosion resistance, making this connector a dependable choice for outdoor, exposed, and high-demand structural applications including seismic and high-wind zones.

Key Features

• Hot-dip galvanized finish - provides superior corrosion resistance for long-term durability in outdoor, exposed, and moisture-prone structural environments where standard finishes would degrade over time.
• Extended seat design - increases bearing surface area beyond each side of the column, distributing load from the beam more evenly and reducing point stress in post-and-beam assemblies.
• Designed for 4x8 post and 4x beam compatibility - engineered for a specific lumber configuration, giving builders a precise, confident fit without guesswork or field modification.
• Certified welds and precision engineering - supports dependable performance in demanding applications including residential and commercial framing where uplift resistance and structural integrity are critical.
• Made in the United States - manufactured domestically, reflecting consistent quality standards for structural connectors used in professional construction.

Why This Product

• Built for seismic and high-wind performance - the CC48HDG is an approved solution for structural connections requiring enhanced uplift resistance, making it a smart choice for projects in earthquake-prone or high-wind regions where code compliance and structural reliability are non-negotiable.
• Corrosion resistance without compromise - the hot-dip galvanized coating goes beyond surface-level protection, making this column cap a practical long-term investment for any outdoor or exposed framing application where moisture is a constant concern.
• Versatile for configurable lumber applications - with options to rotate straps 90 deg. and accommodate custom or rough-cut lumber sizes, this connector adapts to a wider range of post-and-beam construction scenarios without requiring a completely different product.
• A trusted Simpson connector for post-and-beam work - carrying the Simpson name, this column cap is backed by engineering credibility that contractors and structural engineers rely on when load distribution and connection integrity are critical to the build.

Specifications

• Model Number: CC48HDG
• Finish: Hot-Dip Galvanized
• Beam Width: 31/2 in.
• Height 1: 6-1/2 in.
• Width 1: 3-5/8 in.
• Length: 11 in.
• Width 2: 7-1/2 in.
• Post Size: 4x8
• Dimension W1: 3" in.
• Dimension W2: 71/2 in.
• Dimension L: 11 in.
• Dimension H1: 61/2 in.
• Bolt Size: 5/8 in.
• Country of Origin: United States

Approved Applications

• Column-to-beam connections in residential and commercial wood framing
• Structural connections requiring enhanced uplift resistance for seismic or high-wind zones
• Post-and-beam construction where load distribution and bearing area are critical
• Outdoor and exposed structural applications where corrosion resistance is required

Options

• Contact us for Configurable Options and Special orders
• Straps may be rotated 90 deg.
• 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 post and beam sizes is the CC48HDG designed to work with?

The CC48HDG is designed for use with a 4x8 post and a 4x beam with a 31/2 in. beam width.

What type of finish does the CC48HDG have, and why does it matter for outdoor use?

The CC48HDG features a hot-dip galvanized (HDG) finish, which provides superior corrosion resistance. This makes it well-suited for demanding outdoor and exposed structural applications where moisture and the elements could degrade standard finishes over time.

Is the CC48HDG suitable for use in high-load structural environments such as those subject to earthquake or wind forces?

Yes. The CC48HDG is engineered with certified welds and increased uplift loads specifically to enhance performance under earthquake and wind loading conditions, making it a reliable choice for high-load structural scenarios.

What design features help simplify installation of the CC48HDG?

The CC48HDG includes diamond holes that allow for convenient temporary fastening during installation. Its extended seat design also provides additional bearing surface area beyond each side of the column, helping to effectively distribute load from the beam during and after installation.