Simpson Strong-Tie APB Ornamental Post Base

Name: Simpson Strong-Tie APB Ornamental Post Base
Brand: DeckMart Building Supplies
SKU: APB44
Price: 36.37 CAD
Availability: InStock

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SKU: APB44

Regular price $36.37 CAD

Size 4x4 6x6 8x8 10x10

Coating ZMAX

Dimensions Nominal Rough

Product variants

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Eligible Collections

Post Bases & Footing attachment

Frequently Bought Together

4x4 / ZMAX / Nominal

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The Simpson Strong-Tie APB Adjustable Post Base is a versatile and decorative solution for securing posts or columns to concrete surfaces in outdoor structures such as pergolas, patio covers, and other top-supported projects. Part of the Outdoor Accents® Mission Collection®, it features a black powder-coated finish over ZMAX® galvanized steel, offering both aesthetic appeal and enhanced corrosion resistance.

The post base includes a 1-inch standoff to help prevent moisture-induced rot at the post end, ensuring durability. Its slotted design allows for adjustability during installation, accommodating nominal and rough post sizes ranging from 4x4 to 10x10.

For a complete decorative look, it is designed to be installed with the Outdoor Accents structural wood screw and hex-head washer (sold separately), providing a bolt-like appearance with the ease of a screw installation.

Key Features

Designed to meet stringent building codes for seismic or high-wind events
Slotted for adjustability
Features 1" standoff to help prevent rot at post-end
Outdoor Accents side plates available (see APBDSP)
Fastener holes are slightly offset to help prevent fastener interference
Nominal and rough post sizes: 4x4, 6x6, 8x8, 10x10

Finish

ZMAX^® with black powder coat; APB88 and APB1010 standoff base — ZMAX only

Coating

G90 Zinc Galvanized: The standard zinc coating (0.90 oz/sq. ft.) offers moderate corrosion resistance and is ideal for indoor or covered outdoor applications.
ZMAX®: Enhanced zinc coating (~1.85 oz/sq. ft.) provides superior corrosion resistance, perfect for outdoor or high-moisture environments, especially with treated wood.od.od.

Installation

Use all specified fasteners; see General Notes
Use of the Outdoor Accents connectors requires use of the hex-head washer (STN22) and structural wood screw (SDWSDBB)
APB3.75 post base is designed for use with 4x4 rough cut western red cedar lumber
APB44 post base is designed for use with nominal 4x4 lumber; APB44R is for rough lumber
APB66 post base is designed for use with nominal 6x6 lumber; APB66R is for rough lumber
APB88 post base is designed for use with nominal 8x8 lumber; APB88R is for rough lumber
APB1010 post base is designed for use with nominal 10x10 lumber; APB1010R is for rough lumber

When selecting Simpson Strong-Tie post bases, it’s essential to know the difference between rough and nominal lumber:

Nominal Lumber: Standard milled wood with smaller actual dimensions (e.g., a 4x4 measures 3.5" x 3.5"). Most post bases are designed for nominal sizes.
Rough Lumber: Unsurfaced wood retaining larger dimensions (e.g., a 4x4 measures 4" x 4"). Specialized post bases or oversized options are required.

Ensure a proper fit for secure fastening and structural integrity. Simpson Strong-Tie labels their post bases for compatibility with rough or nominal lumber. Always measure your lumber before selecting a base.