ABA/ABU/ABW Adjustable Post Bases
    • Enhanced Durability: The 1-inch standoff design meets code requirements and helps prevent post rot.
    • Versatile Application: Intended for use with double 2x4 lumber with a slotted base for adjustable installation.
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    Ships today when you order in the next 1 hour 16 minutes
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    • Provides a 1" Standoff and slotted for adjustability.
    • Designed for rough cut lumber
    shipping truck, lead time icon
    Ships today when you order in the next 1 hour 16 minutes
    STARTING AT
    $0.00
    • Provides a 1" Standoff and slotted for adjustability.
    • Designed for rough cut lumber
    shipping truck, lead time icon
    Ships May 27 when you order now
    STARTING AT
    $0.00
    • Provides a 1" Standoff and slotted for adjustability.
    shipping truck, lead time icon
    Ships May 27 when you order now
    STARTING AT
    $0.00
    • Provides a 1" Standoff and slotted for adjustability.
    shipping truck, lead time icon
    Ships today when you order in the next 1 hour 16 minutes
    STARTING AT
    $0.00
    • Provides a 1" Standoff and slotted for adjustability.
    • Designed for rough cut lumber
    shipping truck, lead time icon
    Ships May 27 when you order now
    STARTING AT
    $0.00
  • shipping truck, lead time icon
    Ships May 27 when you order now
    Regular price $125.86
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    Ships May 27 when you order now
    Regular price $157.46
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    Ships May 27 when you order now
    Regular price $58.65
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    Ships May 27 when you order now
    Regular price $74.77
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    Ships May 27 when you order now
    Regular price $47.66
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  • shipping truck, lead time icon
    Ships May 27 when you order now
    Regular price $67.76
    Regular price
    Sale price Sale $67.76
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    • Provides a 1" standoff and slotted for adjustability
    • Designed for rough cut lumber
    shipping truck, lead time icon
    Ships May 27 when you order now
    STARTING AT
    $0.00
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Collection:ABA/ABU/ABW Adjustable Post Bases

ABA, ABU, ABW - Adjustable and Standoff Post Bases. This series of Simpson adjustable post base accommodates different loads and code compliances for different regions of the country. They are available for nominal and rough cut lumber, and each adjustable post base has a 1” standoff to prevent the post from being damaged by standing water. Every ABA, ABW and ABU post base includes a slot in the base that allows for flexible positioning around the anchor bolt (not included), which allows for easier and more precise placement of the post.

Simpson Strong-Tie Post Bases are available in different finishes appropriate for your particular regional climate, choose from ZMAX®, powder-coat finish or hot dip galvanized (HDG) for exterior applications, and stainless steel (SS) for harsh and corrosive environments.

NOTE: Simpson Post Bases do not come with the associated nails, Strong-Drive® SD Connector screws or bolts that are necessary for installation. Please see the Product Guide Document for each product that specifies the associated fasteners.


Don’t see the Simpson adjustable post base you need? We can usually get it with no delay in shipping. Call one of our product specialists at 888-794-1590 or drop us a message at customerservice@fastenersplus.com and let us know what we can find for you. We have access to products that may not be listed on our site. We’d also like to know what product you would like to see included on our site in the future. We value your business and aim to give you the highest level of service.