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Vinyl Post Caps

Trex Classic White Pyramid Post Caps top off a Transcend Railing section with deck board top rail

Complete your wood or composite rail system with our wide selection of durable, lightweight vinyl post caps. Browse our huge inventory of colors and styles, including solar collecting options for use with solar lights. We ship fast nationwide!

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  1. Cape May Post Cap by LMT Mercer

    Cape May Post Cap by LMT Mercer


    Starting at:
    As low as $5.99 Price depends on product options. Make a selection to update price.
  2. Haven Post Cap by LMT Mercer

    Haven Post Cap by LMT Mercer


    Starting at:
    As low as $5.99 Price depends on product options. Make a selection to update price.
  3. Neptune Post Caps by LMT Mercer

    Neptune Post Cap by LMT Mercer


    Starting at:
    As low as $5.99 Price depends on product options. Make a selection to update price.
  4. Ornamental Post Caps by LMT Mercer

    Ornamental Post Cap by LMT Mercer


    Starting at:
    As low as $6.99 Price depends on product options. Make a selection to update price.
  5. High Point VersaCap by Deckorators-4-1/16 in-Black - Installed

    High Point VersaCap by Deckorators


    Starting at:
    As low as $16.99 Price depends on product options. Make a selection to update price.
  6. Create a timeless look both day and night with the Cape May Solar Collecting Post Cap by LMT Mercer.

    Cape May Solar Collecting Post Cap with Accessory Connection by LMT Mercer


    Starting at:
    As low as $29.99 Price depends on product options. Make a selection to update price.
  7. Neptune Solar Collecting Post Cap by LMT Mercer - White

    Neptune Solar Collecting Post Cap with Accessory Connection by LMT Mercer


    Starting at:
    As low as $29.99 Price depends on product options. Make a selection to update price.
  8. Ornamental Solar Collecting Post Cap - 3-11/16 inch - Black

    Ornamental Solar Collecting Post Cap with Accessory Connection by LMT Mercer


    Starting at:
    As low as $32.99 Price depends on product options. Make a selection to update price. was $32.99
  9. Stylepoint Post Cap for Deckorators CXT - Shown with copper Post Topper (sold separately) 30%

    Stylepoint Post Cap for Deckorators CXT Pro Railing


    Starting at:
    As low as $11.89 Price depends on product options. Make a selection to update price. was $16.99

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How Do You Install Vinyl or Composite Post Caps?

Post caps are very easy to install, no matter your experience with deck projects. Post caps slide onto the top of your post or post sleeve. Some will attach with screws, but most of our vinyl post caps require only clear exterior silicone or exterior construction adhesive to attach to your posts.

What Size Post Cap Do I Need?

All of our post caps list an Opening Size with their specifications. As shown here, the opening size measures the width of the opening on the bottom of the post cap. For a snug fit, measure the total width of your post or post sleeve, then choose a post cap with the same opening size or an opening that’s slightly larger.

How Do I Adhere Deck Post Caps?

Some will attach with screws, but most of our vinyl post caps require only clear exterior silicone or exterior construction adhesive to attach to your posts.

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