6" x 6" Vinyl Post Sleeve by RDI

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


  • 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 ~ 7-8 business days)


  • 1/8"


  • White
  • Dune
  • Earth 

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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! 


11 Reviews Hide Reviews Show Reviews

  • 5
    perfect fit, great price

    Posted by McMillen enterprises, inc on Apr 16 2017

    These post sleeves fit perfectly around 6x6 treated lumber, with just a little bit of play so no trimming of the wood corners needed - if you've used many post sleeves, you know what I'm talking about!

    Ordered 11 of these for a new house, 8 on the front porch and 3 on the back patio. They shipped quickly and arrived undamaged, and the price was the lowest I could find anywhere online, thanks to the free shipping based on the order size.

    Highly recommend not only this product, but also Deck Expressions. I will be using them for future projects for sure!

  • 5
    Just what I needed

    Posted by Unknown on Sep 14 2016

    I ordered this sleeve to replace an old wooden post that held an entrance sign. This new one looks great! And will never need paint - even better! I bought the Elite Post Cap to complete the look.
    I called the company and spoke to a gentleman who was very helpful in getting me all the right pieces. The delivery was made a day earlier that expected.
    I would use this company again.

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