4x4 Post Cap │ Black Pyramid Top

Four by four Black Pyramid Post Cap for wooden posts.

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Atlanta Post Caps has the only patented fence post caps on the market, and we’re proud that our ASA post caps are made in the USA. We offer a unique line of post caps that will free you from all the worries that people who have wooden post caps face. Plus, our range of ASA resin fence post caps cost far less than comparable wood caps. We carry black 4x4 post caps from the pyramid series in both nominal and actual forms. If your fence posts are between ½ and ¼ inch smaller than 4”x4” (3.5”x 3.5” or 3.75”x 3.75”) you need to choose nominal post caps. If your posts measure anywhere between 4” x 4” and 4.6” x 4.6”, you should choose actual or true 4x4 post caps. Black goes with everything, so if you're struggling to decide what will match your landscape, these may be the perfect solution.

View our installation instructions here.

4X4 Post Cap │ Black Pyramid New England Top

  • Comes in Nominal (3.5” x 3.5” up to 3.75" x 3.75") and Actual (4.0" x 4.0" to 4.5" x 4.5")

  • These caps slide down the post 1.5” and are 5.5” x 5.5” at their widest point.

  • 10 year guarantee against fading, discoloration and warping!

  • High impact, remarkably sturdy ASA resin. The same material used in automobiles!

  • Made in the U.S.A.

  • Quick and easy patented SNAP-CAP installation, built right into the cap!

  • Fraction of the cost of comparable wood caps.

  • Contractor and bulk pricing available!

Unlike wood, ASA resin doesn’t shrink and expand with humidity fluctuations, and it won’t weaken because of the continual atmospheric and moisture changes throughout the year. ASA resin requires no maintenance, and that will never be the case with wood post caps. And one of the greatest benefits of our plastic post caps is that we’re selling you a superior product line for a fraction of the cost of comparable wood fence post caps. And they’ll last far longer, too.

If you’re looking for a way to enhance your curb appeal or add a decorative element to your fence or deck railings, check out the white and black pyramid 4x4 post caps from the pyramid series or any of the rest of our ASA resin fence post caps.  We have a matching 4x4 flat top post cap as well.

 Frequently Asked Questions