The Simpson BC460 4x6 Post Base is a light-duty post and column base designed to secure the bottom of a 4x6 post or column to a wood deck, making it a reliable choice for deck framing, patio cover construction, and similar top-supported applications. Built from 18-gauge steel with a G90 zinc galvanized finish, it delivers a structurally sound connection that outperforms angled nailing or screw fastening while protecting against corrosion in outdoor environments.

Key Features

• Positive post-to-deck connection - mechanically secures the base of a 4x6 post to a wood deck surface, reducing movement and improving overall structural integrity compared to nailing alone
• Stronger than angled nailing or screw fastening - gives builders and homeowners a more dependable joint at the post base, helping the finished structure perform better over time
• Eliminates end-grain nailing and reduces split risk - the bracket design keeps fasteners in the post flange rather than the end grain, lowering the chance of post splitting and extending the life of the connection
• 18-gauge steel construction - provides the rigidity and load capacity appropriate for light base applications such as deck posts and patio cover columns
• G90 zinc galvanized finish - adds an extra layer of corrosion resistance, keeping the hardware performing reliably through seasons of moisture and weather exposure
• Not recommended for non top-supported installations - buyers should note this base is not suited for fences or unbraced carports, ensuring it is selected for applications where it performs as intended

Why This Product

• A more secure post connection than traditional fastening - rather than relying on angled nails or screws driven into end grain, the BC460 wraps the post base in a formed steel bracket, giving deck and patio cover builders a stronger, more consistent connection at every post location
• G90 galvanized protection built for outdoor use - the G90 zinc galvanized coating is a step above basic galvanizing, making this post base a practical fit for exposed deck framing and patio cover projects where long-term corrosion resistance matters
• Engineered specifically for 4x6 framing members - sized precisely for nominal 4x6 posts, this base fits without modification, saving installation time and ensuring a clean, professional result on decks and patio structures
• Made in the United States by a trusted structural connector brand - Simpson manufactures this post base domestically, and the BC series is a well-established solution for light base applications in residential deck and patio cover construction

Specifications

• Model Number: BC460
• Member Size: 4x6
• Width 1: 5-1/2 in.
• Length 1: 3-3/8 in.
• Height 1: 3 in.
• Gauge: 18
• Coating/Finish: Zinc Galvanized, G90
• Fasteners Required (Post Flange): (6) 0.162 x 3-1/2" Nails (sold separately)
• Fasteners Required (Base Bottom): (4) 0.162 x 3-1/2" Nails (sold separately)
• Install With: 16d commons or 16d x 2 1/2" joist hanger nails (sold separately)
• Country of Origin: United States

Approved Applications

• Securing 4x6 posts or columns to wood decks
• Patio cover post base connections
• Light base applications where top-supported installation is present

Downloads and Resources

• View Spec Sheet

Frequently Asked Questions

What size post does the BC460 fit?

The BC460 is designed for a nominal 4x6 post size.

What fasteners should be used to install the BC460?

Install with 16d commons or 16d x 2 1/2" joist hanger nails. The post flange requires (6) 0.162 x 3-1/2" nails, and the base bottom requires (4) 0.162 x 3-1/2" nails. Always use all specified fasteners.

Is the BC460 suitable for use in outdoor or corrosive environments?

Yes. The BC460 features a G90 zinc galvanized finish that provides extra corrosion resistance, making it well suited for outdoor applications such as decks and patio covers.

Can the BC460 be used for fences or unbraced carports?

No. Post bases do not provide adequate resistance to prevent members from rotating about the base and are not recommended for non top-supported installations, such as fences or unbraced carports.