The Simpson 6X Post Cap is a dual-purpose post cap and base designed to create a positive, secure connection between a nominal 6x post and a wood beam or deck framing above. Built from 18-gauge steel with a G90 zinc galvanized finish for extra corrosion resistance, this Simpson connector is a dependable choice for decks, patio covers, and other top-supported post assemblies where a stronger, more reliable joint is required than angled nailing or screw fastening can provide.

Key Features

• Positive mechanical connection for 6x posts - locks the post to the wood structure above, eliminating the movement and play that can occur with angled nailing or toe-screwing alone
• Stronger than angled nailing or screw fastening - delivers a more structurally reliable joint, giving builders and homeowners greater long-term confidence in the connection
• Reduces the chance of post splitting and eliminates nailing into end grain - protects the integrity of the lumber and avoids a weaker fastening method that can compromise the joint over time
• 18-gauge steel construction - provides solid, consistent strength appropriate for light cap and base applications on decks and patio covers
• G90 zinc galvanized coating - offers extra corrosion resistance for outdoor post connections exposed to moisture and weather
• Dual-purpose cap and base design - serves light cap or base applications, adding versatility for different framing conditions within a single connector
• Installs with 16d common nails - works with a standard fastener type that is easy to source and familiar to most builders and contractors
• Not recommended for non top-supported installations such as fences or unbraced carports - knowing the correct application upfront ensures the connector is used where it performs as engineered

Why This Product

• A mechanically stronger alternative to traditional fastening - rather than relying on angled nails or screws driven into end grain, this post cap creates a positive connection that holds more reliably under load, which matters most in structural deck and patio cover applications
• Built to handle outdoor exposure - the G90 zinc galvanized finish is specifically chosen to resist corrosion in the wet, exposed conditions common to deck post connections, helping the connector maintain its integrity over the life of the structure
• Engineered to protect the lumber, not just connect it - by reducing the risk of post splitting and eliminating end-grain nailing, the BC6 helps preserve the structural quality of the post itself, not only the joint
• Simpson engineering for a common post size - purpose-built for nominal 6x lumber used in standard deck and patio cover framing, this connector comes from a brand with a long-standing reputation in structural connector design

Specifications

• MPN: BC6
• Member Size: 6x
• Width 1: 5-1/2 in.
• Width 2: 5-1/2 in.
• Length 1: 4-3/8 in.
• Length 2: 4-3/8 in.
• Height 1: 3-3/8 in.
• Height 2: 3-3/8 in.
• Gauge: 18
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Install With: 16d common nails (sold separately)
• Country of Origin: United States

Approved Applications

• Decks and wood deck post connections
• Patio covers and top-supported post assemblies
• Light cap or base applications where a dual-purpose post cap/base is required

Downloads and Resources

• View Spec Sheet

Frequently Asked Questions

What size post is the BC6 designed to fit?

The BC6 is designed for a nominal 6x post size, making it suitable for standard 6x lumber used in decks, patio covers, and similar top-supported structures.

Why is the BC6 a better fastening solution than angled nailing or screw fastening?

The BC6 provides a positive mechanical connection that is stronger than angled nailing or screw fastening. It also reduces the chance of the post splitting and eliminates the need to nail into end grain, which is a weaker and less reliable fastening method.

Is the BC6 suitable for use in outdoor or exposed environments?

Yes. The BC6 features a G90 zinc galvanized coating that provides extra corrosion resistance, making it well-suited for outdoor applications such as decks and patio covers where exposure to moisture is a concern.

Can the BC6 be used for fences or unbraced carports?

No. The BC6 is not recommended for non top-supported installations such as fences or unbraced carports. It is intended for top-supported applications only, such as decks and patio covers.

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