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Pyramid Copper Post Caps by Captiva

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The final product price may change based on the combination of size / type / finish / style you choose.

Captiva has been manufacturing high quality copper post caps for over a decade.  Made from 100% pure copper and manufactured from a single sheet, there are no seams or joints at the corners, which ensures a long lifetime of post protection.    

These copper caps feature a unique 3/4" overhang to help stop water from penetrating the top of the post.  Posts without caps will typically be the first part of the fence or deck to deteriorate as water penetrates the top year after year,  Water is most damaging in winter where it will freeze and expand gaps in the post, which then allow even more water to get in.  Using a durable, high quality post cap alleviates this issue completely.  Water simply can't get in.

Captiva copper post caps are perfect for your deck or fence.  They come polished to a high shine in their natural finish.  There is no clear coat applied.  If you would like to keep this shiny look, please apply a clear lacquer prior to installation, or shortly after. This is quick and easy using a spray can based applicator.  The lacquer can wear off over time, so it should be applied as needed (1-3 years on average).  If a patina look is desired, then all you will have to is let them weather!

The Captiva copper post cap comes in many sizes to fit 4x4, 4x6, 5x5, 6x6, and 8x8 posts.  The measurements listed in the size selection drop down are the actual inside measurement of the cap.  Please measure your post to ensure it is slightly less than this figure so the cap will fit right over.  All caps come with the mounting screws.

Available Sizes:

  • Nominal 4x4
  •      3-5/8" Opening
  • True 4x4
  •      4-1/8" Opening
  • Nominal 4x6
  •      3-5/8" x 5-3/4" Opening
  • Nominal 5x5
  •      4-5/8" Opening
  • Nominal 6x6
  •      5-3/4" Opening
  • True 6x6
  •      6-1/4" Opening
  • Nominal 8x8
  •      7-5/8" Opening
  • True 8x8
  •      8-1/16" Opening


    All caps are 20 gauge (0.81mm) thick.  Custom sizes are not available on this item.

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    Most orders ship within 1-2 business days. 

    Please see our return policy for additional details.