6x6 Post Caps

Whether or not you are looking for a post cap to protect your posts from mold and water rot or to decorate your landscape, we have the perfect solution for you. Since 6x6 wood posts are large enough to attract attention, it makes sense from a financial and aesthetic standpoint to protect that investment. We manufacture 6x6 post caps made of ASA plastic resin, aluminum, and some that are solar-powered lights. Our 6x6 post caps come in nominal size fitting 5.5" x 5.5" up to 5.75” x 5.75" and true size fitting 6” x 6" up to 6.25” x 6.25". 

Our True or Actual 6x6 post caps are a perfect replacement for Trex® or composite 6x6 posts.

New England 6x6 Post Cap - Pyramid Top

Our pyramid tops are a New England post cap style that fits pressure-treated 6x6 posts and rough cut and synthetic 6x6 posts. The pyramid shape prevents rain from pooling on the cap surface and serves as a deterrent to large birds.

Newel 6x6 Post Cap - Flat Top

Our line of Newel post caps is a timeless flat-top design that is elegant and functional. They add a touch of modern flair to any deck post while also being a functional flat surface. These newel 6x6 post caps also come in nominal sizing for pressure-treated posts and true 6x6 for rough cut lumber and composite posts.


4x4 Post Caps • 4X6 Post Caps • 8x8 Post Caps



All of our Snap-Caps are manufactured and distributed out of Metro Atlanta.


10-year guarantee

Our patented SNAP-Caps come standard with a 10-year guarantee against fading and warping.



Orders over $50 ship for free to the continental U.S. *Some exclusions apply. > SEE DETAILS

Newel 6x6 Post Caps

Our flat top series 6x6 deck post caps feature the same classic style you’d find on posts supporting the banisters inside a historic two-story home. The flat top 6x6 post caps are functional and decorative. They’ll protect the tops of your wooden posts from any weather scenario you might face anywhere in the world. The elegant and sophisticated style of these flat top plastic post caps is the ideal surface for a decorative planter that is filled with seasonal green or flowering plants. Or you can put decorative lanterns on top of the 6x6 deck post caps.


  • The nominal size plastic post caps in the flat top series will fit posts that are between the sizes of 5.5’ x 5.5” and 5.75” x 5.75”.
  • The actual size will fit the flat top series 6x6 posts that measure between 6” x 6” and 6.25” x 6.25”. Actual post toppers come in black, brown, cedar, green, and white.
  • The flat top series 6x6 post caps come with a ten-year guarantee against discoloration, fading, and warping.
  • These post caps come in black, brown, gray, green, and white.

New England Pyramid 6x6 Post Caps

Our pyramid-shaped top 6x6 post cap design is our best selling product. Its classic, but the sophisticated design has some architectural details that give it a feeling of decorative elegance. It is sure to transform the look of a wooden fence from an ordinary and purely utilitarian object that defines your property boundaries, into a visually and aesthetically appealing addition to your landscape.


  • The 6x6 fence post caps in the estate series come in nominal and actual sizes.
  • Nominal is designed to fit posts that measure between 5.5” x 5.5” and 5.75” x 5.75”.
  • The actual 6x6 fence post caps are designed to fit posts that are between 6” x 6” and 6.25” x 6.25”.
  • The Pyramid Series 6x6 post caps are guaranteed for ten years against discoloration, fading, and warping.
  • These post caps come in black, brown, gray, green, and white.

These 6x6 pyramid post caps protect the top of any metal, composite or wood post. They are a New England style and the diamond shaped top is perfect for funneling water away from fence posts. The are an identical fit to our flat top 6x6 deck post caps, and fit both Nominal and True sizes. Pyramid shaped post caps are desirable for your fence as it deters birds and debris from staying on top, and makes for easier maintenance and fall clean-up.

See our matching style in other sizes here: