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SKU: ABU44Z

Simpson ABU44Z 4x4 Adjustable Post Base - Zmax Finish

Simpson ABU44Z 4x4 Adjustable Post Base - Zmax Finish!

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ABA/ABU/ABW Adjustable Post Bases
SKU: ABU44Z

Simpson ABU44Z 4x4 Adjustable Post Base - Zmax Finish

$25.99
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Ships Nov 10 when you order now
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Post Size:

4x4 4x6 6x6 8x8 10x10 12x12

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Specifications

Post Size: 4x4
For Treated Lumber: Yes
Material: Steel
Finish: ZMAX
Manufacturer Name: Simpson Strong-Tie
Fasteners Required: - (12) 0.162 x 3-1/2" Nails OR - (2) 1/2" Bolts - (1) 5/8" Concrete Anchor
Description

The Simpson ABU44Z 4x4 Adjustable Post Base is engineered for strength, durability, and ease of installation. Designed to anchor a nominal 4x4 wood post to concrete, it provides a strong connection while allowing for precise post placement during construction.

Made from 12-gauge steel and finished with Simpson’s ZMAX coating, this base offers superior corrosion resistance—ideal for outdoor applications where moisture is present. The base is slotted for adjustability, making it perfect for decks, patio covers, fences, and other wood-framed structures.

The unit includes a 1" standoff to help prevent post-end rot by keeping the wood elevated above moisture-prone surfaces. Pre-drilled holes simplify installation with anchoring hardware (sold separately).

Features:

  • ZMAX Finish: Provides heavy-duty corrosion resistance for outdoor and pressure-treated lumber use.
  • 1" Elevated Standoff: Helps reduce moisture contact, preventing rot at the base.
  • Slotted Base: Allows for precise post placement and alignment.
  • 12-Gauge Steel Construction: Ensures long-lasting structural strength.
  • Versatile Applications: Commonly used in decks, fences, and porch framing.
  • Easy Installation: Compatible with standard anchoring hardware (sold separately).

Installation Tip:
Secure the base to the concrete with a recommended anchor. Insert the post, align as needed, and fasten using approved Simpson Strong-Tie fasteners for a secure hold.

California Residents: WARNING

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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

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ABA/ABU/ABW Adjustable Post Bases

× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

Based on 9 reviews
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P
Patrick Odell
Great product

Heavy duty anchor. Used it to secure a beam comprised of (3) 2x8s so had to add a 1" spacer before bolting to the beam since inside dimensions are 5 1/2 ". No problem in doing so, just be aware.

R
Ron
Convenient and Quick Ship

Ordering was convenient and shipping was quick. Will do business with them again.

R
Ron
Convenient & Quick Shipping

I experienced some difficulties locating my brackets where I live. Ordering was a snap beats running all over looking for tge parts.

Y
Yunio Gonzalez
Good Stuff

Sturdy, strong, if you want to get the job done professionally use Simpson Strong Tie and don't forget the hardware.

Thank you for writing a review. We are proud to be a Platinum Distributor of such a quality brand like Simpson Strong-Tie! Tammy ~ Fasteners Plus Team

C
Chris

Quick shipping. Showed up 4 days after ordering

  • Our footprint

    We are on a mission to expand our national reach—offering more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 47,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 60,000 sq. ft. facility in Urbana, Iowa.

  • Our experience

    We pride ourselves on delivering a user-friendly, high quality experience online and over the phone. Our knowledgeable team of experts is readily available via phone to assist with product questions and custom pricing inquiries. We’re available Monday thru Friday from 7:00 AM – 5:00 PM CST. We look forward to supporting you on your next job.

  • Proud distributor

    We partner with trusted manufacturers in the fasteners industry to bring our customers a selection of over 10,000 different products. Fasteners Plus is one of only four Certified Platinum E-Commerce Vendors of Simpson Strong-Tie products, one of the largest suppliers of high-quality structural building products in the world.