6x6 Post Caps

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Actual vs Nominal

Any wooden fence or deck railing is a significant investment in your property and landscape. 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 that are made of ASA plastic resin, and aluminum, and solar powered. Our 6x6 post caps come in nominal size fitting 5.5” up to 5.75” and true size fitting 6” up to 6.25”.

All of our 6x6 fence post caps are designed to slide over the top of your wooden posts. They create a seal that will prevent water from seeping in and saturating the tops of your posts, potentially leading to mold growth or rotting. Whether you’re looking for fence post toppers for the dual or triple purpose that some styles serve, or for pure function, our line of 6x6 post caps will fulfill those goals and much more.

SNAP-Cap Post Caps

Our ASA resin 6x6 deck post caps are superior to most post caps in the industry. They’re made from the same hard plastic that automobile manufacturers use for bumpers and other car parts. ASA Resin’s use in cars is definitive proof that the material can withstand everything from harsh weather conditions, to projectiles that fly through the air during hurricanes and tornadoes. ASA resin is durable enough to tolerate the intensity of UV rays. 

ASA Resin post caps carry the Atlanta Post Caps label. We’re proud of the superior quality of all of our plastic posts caps, and the fact that they are made in the U.S.A.

Our plastic post caps carry a patent because of the ingenious design of our SNAP-CAP installation method.

Every purchase of our ASA resin 6x6 post caps comes with a ten-year guarantee against fading, warping, and discoloration.

ASA Resin 6x6 Fence Post Caps come in two sizes: Nominal and Actual. Actual - or True is the term that the lumber industry uses for posts that are dried before they are cut. Unlike nominal posts, which are cut when they are green and then dried, actual posts don’t shrink during drying. Green wood is wood that is still moist, and the excess moisture is sucked out of the wood during the drying process. Because of the premature cutting, nominal posts are always smaller than true posts. 6x6 deck post caps for nominal posts are a half an inch smaller on both sides.

Why ASA Resin SNAP-Cap Post Caps are Superior to Wood Post Caps

  • All of our ASA plastic post caps create a seal that keeps water from seeping under the post cap lid.

  • These post caps are better than wood in every way, especially their strength, durability, and lifespan.

  • The hard plastic of ASA resin don’t erode or decay, but wood does.

  • ASA plastic post caps require no maintenance. Wood post toppers need to have repeated applications of sealer for continued water resistance.

  • Our hard plastic post caps cost a fraction of what you’d pay for comparable wooden post caps.

6x6 Pyramid Post Caps

Our pyramid-shaped top 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.

6x6 Flat Top 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.

6x6 Aluminum Post Caps

Our aluminum post caps have a classic, smooth, modern, and elegant look. These metal post caps offer a long-lasting solution for protecting wood posts. The streamlined design may lack the decorative architectural features of our ASA resin post caps, but they will protect posts and keep water from seeping in under the cap. The installation process is simple: drill the two provided screws into the holes on the sides of each caps.

  • The nominal size of our aluminum 6x6 fence post caps fits posts that measure 5,5” x 5.5”. The nominal 6x6 post caps come in plain aluminum (without any powder coating), black, copper, and white.
  • The actual size fits true 6” x 6” wood posts. The actual size comes in black, plain aluminum, copper, and white.
  • The purchase of our aluminum post caps comes with a one year guarantee against fading and they are made in China.

6x6 Solar Post Caps

Solar post caps will fit wood posts that measure 5.5” x 5.5” or 6” x 6”. They use LEDs to produce light, powered by a rechargeable battery. The solar cell charges the battery (one AA rechargeable Ni_MH) so that the post cap comes on automatically. There is also a feature that allows you to turn it on with a switch, and some of them have a low or high light setting as well. These 6x6 solar post caps can stay lit for up to 12 hours.

All solar post cap purchases come with a one year manufacturer’s warranty.

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