These white 4x4 post caps belong to the slimline series, our most affordable post cap design. Our company manufacturers our own fence post caps in a variety of styles, sizes, and design series. And we’re proud of the fact that all of the products we sell are made in the U.S.A. These plastic post caps serve two purposes: they will protect the top of your fence support posts, and they’ll give your entire fence or deck rail, a more sophisticated, elegant, and overall beautiful look. The white 4x4 post caps in this slimline series are only available in the nominal size. View our installation instructions here. Product Warranty Atlanta Post Caps offer a 10-year warranty on discoloration, fading, and warping of these 8x8 post caps. The company also offers a 100% satisfaction guarantee and full refund if the post caps don’t meet your quality expectations and needs. The caps are exclusively made in the USA, with customization available for specific products. 4x4 Post Cap (3.5" x 3.5") │ White Slim Profile Fence Post Cap Fits a standard (Nominal) post. (3.5” x 3.5” up to 3.75" x 3.75"). Slim Profile caps slide down the post 3/4” and are 4.5” x 4.5” 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!  Frequently Asked Questions 4X4 POST CAPS