The Simpson ECB Hot-Dip Galvanized 2-in. Standoff Elevated Column Base for 6x6 from Simpson is purpose-built to simplify waterproofing installation on stacked balconies in multi-family buildings. Compatible with both hollow columns and solid-sawn posts, this post base stands apart as the only off-the-shelf option featuring a 2-in. standoff - providing enough clearance for moisture barrier material and a thin finish surface while still maintaining the 1-in. code-required standoff that guards against post decay. Its hot-dip galvanized finish delivers extra corrosion resistance, making it a reliable choice for exterior construction and pressure-treated wood applications.

Key Features

• 2-in. elevated standoff design - accommodates moisture barrier material and a thin finish surface while still meeting the 1-in. code-required clearance to prevent post decay, so your installation stays compliant without compromise.
• Compatible with hollow columns and solid-sawn posts - gives contractors and builders flexibility across a wider range of column types without needing a different connector for each application.
• Flexible anchorage options - 4 corner holes allow fastening to wood framing, while a single center hole supports anchoring into concrete, so this base adapts to your substrate without additional hardware hunting.
• Hot-dip galvanized coating - provides extra corrosion resistance beyond standard finishes, making this column base well suited for exposed exterior environments and contact with treated lumber.
• Heavier-gauge base and tube construction - the 7-gauge base and tube paired with a 12-gauge cup deliver structural integrity where the connection is most critical, giving you confidence in long-term load performance.

Why This Product

• The only off-the-shelf post base with a 2-in. standoff - most post bases require field modifications or added shimming to create room for waterproofing layers. This base is specifically engineered to handle moisture barrier material and a finish surface right out of the box, saving installation time on multi-family balcony projects.
• Built for the moisture-intensive conditions of stacked balcony construction - the combination of the elevated standoff and hot-dip galvanized finish directly addresses the two biggest durability threats in exterior column connections: trapped moisture at the base and corrosion from treated-wood chemicals or outdoor exposure.
• Anchors to both wood and concrete substrates - the dual anchorage configuration means one connector works across different structural conditions on the same job site, reducing the need to source and stock multiple base types.
• Made in the United States by a trusted structural connector brand - Simpson has a well-established record in engineered structural connectors, and this product is manufactured domestically to consistent quality standards.

Specifications

• Model Number: ECB66HDG
• Member Size: 6x6
• Gauge: Cup 12; base and tube 7
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Country of Origin: United States
• Install With: Install with (1) 1/2-in. diameter Titen HD, Stainless-Steel Titen HD or Titen Turbo anchor into concrete OR (4) 1/4-in. diameter Strong-Drive SDS Heavy-Duty Connector screws into wood AND (16) 0.148-in. x 1.5-in. nails into the column

Downloads and Resources

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Frequently Asked Questions

What makes the ECB66HDG different from other post bases on the market?

The ECB66HDG is the only post base available off the shelf that features a 2-in. standoff. This extra clearance provides enough room for moisture barrier material and a thin finish surface while still meeting the 1-in. code-required standoff needed to prevent post decay - a critical advantage for stacked balcony applications in multi-family buildings.

Can this column base be used with both hollow columns and solid-sawn posts?

Yes. The ECB66HDG is designed for use with both hollow columns and solid-sawn posts, offering broad versatility for a variety of construction scenarios.

What are the anchorage options for the ECB66HDG?

The ECB66HDG offers flexible anchorage options. It can be anchored to concrete using (1) 1/2-in. diameter Titen HD, Stainless-Steel Titen HD, or Titen Turbo anchor through the center hole, or fastened to wood using (4) 1/4-in. diameter Strong-Drive SDS Heavy-Duty Connector screws through the 4 corner holes. Additionally, (16) 0.148-in. x 1.5-in. nails are used into the column.

Why is hot-dip galvanization important for this column base?

Hot-dip galvanization (HDG) provides an extra layer of corrosion resistance, making the ECB66HDG especially suitable for exterior applications and use with treated wood, where exposure to moisture and chemicals can accelerate corrosion in standard hardware.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.