6" x 6" Vinyl Post Sleeve by RDI

$36.99 - $79.99
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6" x 6" Vinyl Post Sleeve by RDI

NOTE ~ Sleeves ship UPS Ground or LTL with a 4-5 week Lead Time


  • Vinyl’s base ingredient is rigid PVC (polyvinyl chloride) modified to provide superior strength and ultraviolet resistance.


  • Our vinyl is impact modified for flexibility and durability. All RDI post sleeves meet or exceed the requirements for long-lasting durability and performance after installation.

The RDI post sleeve is ideal for covering unsightly posts. Offered in 3 colors this sleeve will match any rail system in todays market. This sleeve offers a beefy 1/8" wall thickness.If you have recently purchased a home ~ or have even lived in the same home for a number of years ~ there may be some quick improvements that will help update a space and make a house feel more like your own. One quick home improvement that will do a world of good is upgrading old posts that support deck or porch railing systems. If you think that kind of work is bound to be costly, think again. Using vinyl post sleeves from RDI, you can give your porch or deck a much-needed refresher with very minimal cost. Simply apply the 6" x 6" post sleeves to any unsightly, weathered, or worn down posts, and you’ll notice an instant sense of accomplishment in making your home look welcoming and refreshed.Made from sturdy vinyl, this sleeve can withstand all kinds of weather, including humidity, rain, snow, and extreme heat.

RDI is so confident in the quality of its vinyl post sleeves that the company offers a lifetime warranty to guarantee your purchase.

Still have questions or need advice on ordering the right supplies for your project? Get in touch with Deck Expressions’ 24/7 customer service. We’re always ready to help.


  • Sleeves are designed to slide over existing 6x6 posts. 
  • Inside dimensions ~ 5-3/4" x 5-3/4"
  • Outside dimensions ~ 6" x 6"
  • Includes 1 ~ Bagged Post Sleeve
  • The Endurance Original Rail vinyl post sleeve is compatible with any RDI vinyl rail system. The sleeve fits any nominal 6x6.
  • Note ~ Colors May vary 


  • 54" ~ (white only)
  • 108" ~ (108" sleeves ship via LTL truck ~ 7-9 business days)


  • 1/8"


  • White
  • Dune
  • Earth 

final-line-color-white.png final-line-color-dune.png final-line-color-earth.png

Click HERE for Warranty:

Click HERE for 4x4 Sleeves:

Click HERE for Post Cap Options:

Click HERE for Post Skirt:

Use the adjustable post skirt to dress the bottom of the post. Skirt can also be used at top of post at ceiling! 


16 Reviews Hide Reviews Show Reviews

  • 5
    Great quality product

    Posted by Mb on Jun 26 2020

    I know nothing about post sleeves but these are very nice! What is completely awesome was my customer experience! We needed this product on a tight deadline and when I emailed for info I got an actual call back! I’m sold!

  • 5

    Posted by K. W. on Jun 13 2020

    What can I say: best price on the web, fast shipping, no damage, and great overall purchase experience. Go for it.

  • 5
    High Quality Deck Enhanccement

    Posted by Larry Phillips on May 13 2020

    Have built many decks over the years. Dicovered these whiile designing the latest one. Will add class to an otherwise ordinary commonplace project.

  • 4
    High Quality for Price

    Posted by Amber on May 7 2020

    I was very impressed with the quality of these sleeves for the price. Took a little longer to delivery then I had anticipated but not the companies fault during this time. Wasn't happy with the packaging. I ordered 6 and 2 were cracked. They could have been packaged a little better. They did ship out 2 more at no extra cost. Rick was very nice to work with. Thank you for a good product and your help!

  • 5
    6 x 6 post sleeves

    Posted by Kyle on May 5 2020

    These worked perfectly to slide over top of my old and partially rotted wooden posts. Several neighbors have already stopped by to compliment us thinking we had a new deck only to discover otherwise. I highly recommend using these sleeves to give your posts a fresh new look.

  • 5
    Worked perfectly

    Posted by John Zaccone on Jan 25 2020

    Very happy with these post sleeves.. They slid perfectly over the old wooden posts.

  • 4

    Posted by Jake on Jul 19 2019

    Product is exactly what I needed. One of them arrived broken at the end but luckily it was longer than needed. Quality is good looks great.

  • 4
    Post sleeves

    Posted by Jeffrey Heffern on Jun 18 2019

    Post sleeves arrived when expected from Deck Expressions. The delivery service however dropped something on the box, and one of the sleeves was cracked. Waiting on a replacement from Deck Expressions.

    The good condition sleeves which we installed were easy to cut to size, and installed perfectly over the existing deck posts, and look exactly as we hoped.

  • 4
    6x6 RDI post sleeve

    Posted by Louis Economo on Oct 7 2018

    Product is good but shipped in a bag as opposed to a box sometimes makes susceptible to damage in shipping.

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