The Simpson Strong-Tie CB68PC Column Base is a cast-in-place post base engineered to anchor 6 x 8 wood column members securely to concrete foundations. Designed with its base plate flush to the concrete surface, this column base delivers a clean, low-profile installation while effectively preventing wood members from rotating at the base. The CB68PC is finished in a textured flat black powder coat - a significantly more durable and visually refined finish than standard paint - making it equally at home in structural and architectural applications where appearance matters.

Key Features

• Cast-in-Place Design: Base plate installs flush with the concrete surface for a clean, low-profile finish
• Rotation Prevention: Engineered to help prevent wood column members from rotating about the base
• Textured Black Powder-Coat Finish: Produces a more durable and better-looking finish than standard paint
• Heavy-Gauge Construction: Fabricated from 7-gauge steel for superior strength and rigidity
• Wind & Seismic Load Rated: Allowable loads increased 60% for wind or earthquake loading
• Made in the USA: Manufactured domestically by Simpson Strong-Tie

Specifications

• Manufacturer: Simpson Strong-Tie
• Model / MPN: CB68PC
• Column Size: 6 x 8
• Finish: Textured Black Powder-Coat
• Material Gauge: 7 Gauge Steel
• Fasteners Required: (2) 5/8" Bolts
• For Treated Lumber: No
• Country of Origin: United States

Approved Applications

• Anchoring 6 x 8 wood columns to concrete foundations, piers, or slabs
• Residential and commercial post-to-concrete connections
• Architectural applications where a clean, finished appearance is required
• Structures requiring wind or seismic load resistance
• Not recommended for non-top-supported installations such as fences or freestanding columns, as post bases do not provide adequate resistance to prevent member rotation in those configurations

What's Included

• (1) Simpson Strong-Tie CB68PC Column Base - Textured Black Powder-Coat finish

Note: Fasteners are not included. (2) 5/8" bolts are required for installation.

Installation Guidelines

• Use all specified fasteners as outlined in the installation requirements
• Allowable loads have been increased 60% for wind or earthquake loading; no further increase is allowed - reduce where other loads govern
• Minimum side cover for full loads is 3" for CB-series bases
• Install all models with the bottom of the base plate flush with the concrete surface
• Post bases do not provide adequate resistance to prevent members from rotating about the base and are therefore not recommended for non-top-supported installations such as fences

Disclaimers

Note: Product dimensions and/or screw or bolt holes may differ from picture.

Frequently Asked Questions

What size wood column is the CB68PC designed to fit?

The CB68PC is specifically engineered to anchor 6 x 8 wood column members. It is not intended for use with other column dimensions, so confirming your column size before purchasing is important.

How does the CB68PC attach to the concrete foundation?

The CB68PC is a cast-in-place column base, meaning the base plate is installed flush with the concrete surface during the pour. It is secured using two 5/8" bolts, resulting in a clean, low-profile connection between the wood column and the concrete foundation.

Is the CB68PC suitable for use with pressure-treated lumber?

No, the CB68PC is not approved for use with treated lumber. If your application involves pressure-treated wood columns, a different Simpson Strong-Tie column base rated for treated lumber should be selected.

What makes the black powder-coat finish on the CB68PC different from standard paint?

The CB68PC features a textured flat black powder-coat finish, which is described as more durable and better-looking than standard paint. This makes the connector well suited for both structural applications and architectural settings where the appearance of exposed hardware is important.