Composite & Vinyl Post Caps

Trex Classic White Pyramid Post Caps top off a Transcend Railing section with deck board top rail
Complete a new or existing wood, composite, or vinyl rail system without the weight of metal using these durable and stylish post caps. DecksDirect offers expert-picked post caps that ship fast directly from our warehouse.

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18 Item(s)

  • Haven Post Cap by LMT Mercer

    Haven Post Cap by LMT Mercer

    Starting at: $5.99

    Price reflects options chosen above

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

  • Cape May Post Cap by LMT Mercer

    Cape May Post Cap by LMT Mercer

    Starting at: $5.99

    Price reflects options chosen above

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

  • Neptune Post Caps by LMT Mercer

    Neptune Post Cap by LMT Mercer

    Starting at: $4.99

    Price reflects options chosen above

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

  • Ornamental Post Caps by LMT Mercer

    Ornamental Post Cap by LMT Mercer

    Starting at: $5.99

    Price reflects options chosen above

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

  • Ornamental Post Cap for Trex Post Sleeves by LMT Mercer Group - Classic White

    Ornamental Post Cap for Trex Post Sleeves by LMT Mercer Group

    Starting at: $13.99

    Price reflects options chosen above

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

  • Transcend Flat Top Post Cap by Trex - Classic White

    Trex Transcend Flat Top Post Cap

    Starting at: $10.99

    Price reflects options chosen above

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

  • Transcend Pyramid Post Cap by Trex - Classic White

    Trex Transcend Pyramid Post Cap

    Starting at: $10.99

    Price reflects options chosen above

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

  • White Bulbs Illuminated

    Solar Post Cap Light for Trex Transcend Post Sleeves by Ultra Bright

    Starting at: $99.99

    Price reflects options chosen above

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

  • White Bulbs Illuminated

    Solar Post Cap Light for 4" Post Sleeves by Ultra Bright

    Starting at: $99.99

    Price reflects options chosen above

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

  • White (White Bulbs Illuminated)

    Solar Post Cap Light for TimberTech RadianceRail Post Sleeves by Ultra Bright

    Starting at: $99.99

    Price reflects options chosen above

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

  • High Point VersaCap by Deckorators-4-1/16 in-Black - Installed

    High Point VersaCap by Deckorators

    Starting at: $16.99

    Price reflects options chosen above

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

  • Premier Rail Pyramid Post Cap by AZEK

    TimberTech Premier Rail Pyramid Post Cap by AZEK

    Starting at: $28.99

    Price reflects options chosen above

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

  • Premier Rail Island Post Cap by AZEK

    TimberTech Premier Rail Island Post Cap by AZEK

    Starting at: $29.99

    Price reflects options chosen above

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

  • RadianceRail Post Cap by TimberTech - White

    TimberTech RadianceRail Post Cap

    Starting at: $22.99

    Price reflects options chosen above

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

  • RadianceRail Express Post Cap by TimberTech - Kona

    TimberTech RadianceRail Express Post Cap

    Starting at: $12.99

    Price reflects options chosen above

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

  • Neptune Solar Collecting Post Cap by LMT Mercer - White

    Neptune Solar Collecting Post Cap with Accessory Connection by LMT Mercer

    Starting at: $23.99

    Price reflects options chosen above

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

  • Cape May Solar Collecting Post Cap by LMT Mercer - White

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

    Starting at: $23.99

    Price reflects options chosen above

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

  • Ornamental Solar Collecting Post Cap - 3-9/16 inch - Black

    Ornamental Solar Collecting Post Cap with Accessory Connection by LMT Mercer

    Starting at: $26.99

    Price reflects options chosen above

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

Set Descending Direction

18 Item(s)

Not Sure Where to Start?

DecksDirect is dedicated to the builder in all of us. That's why we built this resource section just for you, with resources that will empower you with the information and confidence you need to succeed in your post cap project. From a expert advice to choosing the right post cap size, we've got you covered.

  • Talk to a Specialist

    Talk to a Specialist

    Jose is one of our post cap specialists and is here to help you with your project.

    Contact a Specialist  View all Team Members 
  • Getting Started

    Getting Started

    Get ideas and inspiration before choosing your post caps.

    Image Gallery 
  • Check out our deck resource section packed with How-tos and troubleshooting guides to help you get the job done.

    Deck Resources 
  • Design & Quote

    Free Quote

    Design your project with our specialist. When you're ready, get a custom quote.

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  • Post Cap Warranty

    Warranty Information

    See how different post cap manufacturers stack up on our manufacturer warranties page.

    View Warranties 
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