4″ x 4″ Black Aluminum Ornamental Pyramid Post Cap

Our powder coated post caps are a quick and easy way to upgrade your outdoor space. Made of marine grade aluminum, they’re the perfect way to top off a fence or deck post. In only minutes, you can add style to your property while protecting your posts from cracking, splitting, and weathering from the elements.

UPC CODE: 6942846000063

This long lasting pyramid post cap is an easy way to instantly improve your outdoor space. The marine grade aluminum construction of our post caps protects your post from weathering and seasonal elements while its modern yet timeless look elevates any environment.

On top of protecting your post, its elegant and simple features complement most residential, commercial, industrial fencing, and landscaping projects. Install them on wooden, iron, composite, vinyl, or aluminum posts. Their design versatility makes them perfect for contractors and DIYers and ensures they’ll be the perfect addition to your backyard.

Fits over 4″ x 4″ nominal posts

Understanding Post Cap Sizes:

  • When a post cap fits a nominal or dressed post, the post measures 1/2″ less than the measurement listed.
    Example: a nominal or dressed 4″ x 4″ post cap fits a post that measures 3.5″ x 3.5″
  • When a post cap fits a rough lumber or undressed post, the post size is the same as the measurement listed.
    Example: a 4″ x 4″ rough lumber or undressed post cap fits a post that measures 4″ x 4″


  • SIZE | Fits over a 4” x 4” nominal post
  • MATERIAL & FINISH | This long lasting post cap is made from marine grade aluminum and features a powder coated and thermally bonded satin finish
  • BUILT TO LAST | Extends the life of your fence or deck post while preventing cracking, splitting, and weathering.
  • DESIGN | Its sleek, elegant and simple pyramid design will complement any project or space
  • WELL-HIDDEN HARDWARE | Black screws provided create a seamless finish for installation. Screws included are for wooden post installation.
  • EASY INSTALL | In addition to the beauty and post protection it offers, the installation process is quick and intuitive.
  • LOW MAINTENANCE | Post caps clean easily with soap and water, making maintenance simple


  • UV-Protected | prevents fading and discolouring caused by the sun’s harsh rays
  • Rust-Resistant | its durable aluminum construction and powder coated finish prevent peeling and blistering
  • Weather Protected | designed to last through North America’s harshest conditions
  • ACQ wood compatible
  • Ideal for use in low to high traffic locations
  • Ideal for contractors and DIYers
  • Novice skill set required for installation
  • Estimated installation time: 5 minutes
  • Prior to construction, check with your local municipality for building code requirements in your area.
  • Perfect for residential, commercial, and industrial use
  • Materials and packaging are fully recyclable
  • Nuvo Iron™ brand marking on side of post cap
  • Limited one (1) year warranty.


  • Click here to download a PDF version of the instructions
  • Click here to watch our How-To Installation Video 
  • How to Install a Post Cap
    • Once all panels are installed at the preferred height, simply cut the posts at an elevation that best suits the cap style.
    • This may be achieved with a hacksaw, reciprocal saw or band saw.
    • Make certain that all sharp metal shavings have been removed from the panel.
    • Please note that exact post heights may be set prior to installation to avoid any cutting.
    • Once the posts have been set to height, pop out the screws included on the inside of the cap.
    • Simply install the cap over top with a rubber mallet to create a snug fit and screw the screws into the sides of the cap for a long-lasting fit.