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Internet #100374846

Model #PBS44AZ

Store SKU #151368

Store SO SKU #592854

PBS ZMAX Galvanized Standoff Post Base for 4x4 Nominal Lumber

  • Versatile and easy to use post base
  • Designed for installation in wet concrete
  • Perfect for decks or patio covers
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Product Overview

Post and column bases secure the bottom of posts or columns to concrete and are perfect for decks or patio covers. Models are available for attaching to existing hardened concrete, wet concrete, as well as wood. The PBS series provides a connection between a post (or column) for decks, patio covers and other top-supported structures.
  • Embeds in wet concrete after pour and is made to install flush with the concrete surface
  • Embossment in the seat of the base gives increased strength
  • Stress relief holes under the base resist tearing during loading
  • Features a 1-in standoff height, reducing the potential for decay at post and column ends
  • Nominal post size: 4x4
  • Base 12-Gauge steel; strap 14-Gauge steel
  • ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications
  • Install with 16d common nails, #10 x 1-1/2 in. Strong-Drive SD screws or 1/2 in. diameter machine bolts
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Info & Guides

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Nominal Post Size (in.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Base Type
Standoff Post Base
Connector Finish
G185 Galvanized
Fasteners Included
Fasteners Not Included
No Additional Features
Material Connector Compatibility
Wood to Concrete
Number of Pieces
Package Quantity
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
Limited Warranty

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.7
    out of 72 reviews
  • 88% recommend this product
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Showing 1-10 of 72 reviews
This anchor isn’t quite as robust as the CBS44; however, is more than adequate for decks outside ...
This anchor isn’t quite as robust as the CBS44; however, is more than adequate for decks outside of hurricane zones. Also, be sure to set the standoff base fully down as there are little indentations to hold it in place on the bracket. I chose to trowel a little bit of concrete underneath the standoff base to help fill the displaced concrete from setting the anchor in the sonotube. I was pleased with the results of this anchor. I prefer the “wet set” style anchors for their superior holding strength. I used the CBS66 on a job and I wrongfully assumed I would be able to plumb a 12’ 6x6 after nailing it to the post base. It was so secure after nailing I couldn’t plumb the post, so, I removed the nails, plumbed and braced the post, then re-nailed the post. Some reccomendations to a person using these for the first time for a drop or flush beam connection: - Set the level of the anchor between 1/4 to a 1/2” low of your target elevation (finish deck height minus deck board and framing thickness). Treated lumber can vary a lot in its width dimensions, so avoid the aggravation of being too high by intentionally being a hair low. You can always use structural composite shims to level the beam. - plumb the beam before nailing off. It’s temping to nail off the beam and “rock and roll” however, take the time to plumb the beam or risk your joist cuts having to be cut fractions of a degree off to fit properly. Ask me how I know. - I would not recommend these bases incorporated with a monolithic slab. If anything, pour your column footings before your slab if you want to use these. If you do use them with a monolithic pour, have someone dedicated to focusing on the post bases alone; or, have some jig made up to preset the post bases before you pour. They take time to align so dont think you can pour a slab and them set these in quickly. For large light pole bases we would hand tighten the steel bases to a slab of plywood and use that as the jig to set the light pole anchors. That could work for these too i suppose.
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3 people found this helpful
Perfect fit
Perfect fit
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  • Recommended
Solid & well made
Easy to work with, multiple fastener options and held securely
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  • Recommended
1 person found this helpful
Must for my deck!
I was looking for a product that would provide strong lateral support for 4x4 posts (approx 8' tall) that would be supporting fence panels on a deck. After searching online and at various hardware stores, these appeared to seat in the concrete the deepest and also have the highest bracing for the posts. See my attached pic for the final product. I was very pleased!
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1 person found this helpful
Extended legs of base give stronger connection to post or...
Extended legs of base give stronger connection to post or beam above. Simpson connectors work very well.
Response from Simpson Strong-TieNov 1, 2021
Hi HomeDepotCustomer, this is Stacy from Simpson Strong-Tie. Thank you for your feedback. We value our customers and are committed to providing exceptional products and service. If you have any questions please reach out to our Customer Service team by calling 800-999-5099. SimpsonStrongTie
        Rating provided by a verified purchaser...
        Rating provided by a verified purchaser
          couldnt use too small for my need...
          couldnt use too small for my need
          Response from Simpson Strong-TieJul 23, 2021
          Hi, this is Ricardo from Simpson Strong-Tie. We appreciate your feedback and are very sorry your experience with our PBS series of post bases was less than ideal. We know that's frustrating and want to help. We do offer other sizes not only in our PBS series, but also our CBS, CBSQ, and MPB series of column bases. In order to identify the issue and help with the sizing of the post or column base you need, we ask that you reach out to our Customer Service team at 800-999-5099​.​ SimpsonStrongTie
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          Rating provided by a verified purchaser...
          Rating provided by a verified purchaser
          • Verified Purchase
          Showing 1-10 of 72 reviews