4" to 6" Adjustable 4 piece post trim base by RDI

$11.99 - $13.99
Usually arrives in 10 business days
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Adjustable 4 - Piece Base Post Trim by RDI


  • Material: vinyl

  • 3 different colors to choose from: white, clay, and sand


  • Measurements: 

    • Adjusts to fit 4” - 6”L x 1-1/4”W, 1-1/16”H


  • 4-piece base post trim (1)

More details:

  • Made in the USA

  • Low maintenance

  • Weather-resistant vinyl

  • Can easily assemble and disassemble 

About this product…

Post trims are pieces of material that wrap around the bottom of your 4 piece post wrap in order to bridge the gap between your columns and your decking. Post trims can offer more cohesion or an aesthetically pleasing transition from the materials of your columns to the materials of your decking. If you’re working on a deck or porch project and are looking to evoke the timelessness of beveled wood details, consider adjustable four piece post trim by RDI as an equally alluring solution for a fraction of the hassle and cost. Not only is this adjustable deck post base incredibly easy to work with, but it is just as attractive as any wood option. The flexibility this adjustable four piece deck post base offers makes it an appealing addition to any railing or deck, as long as your posts range in size anywhere from 4" - 6". This item can also be used at the top of the 4x4 4-piece post wrap by flipping it upside down.

Available in white, clay, and sand, these post bases are sure to add polish to any job, whether you are a contractor or a homeowner making a few improvements. Crafted using weather-resistant vinyl, RDI’s adjustable deck post trim can withstand the elements and is incredibly low-maintenance.

Great alternative for when sliding over an existing post is not an option.

These are easily installable, snapping together to secure the four pieces of the trim. Within minutes, you now have a polished looking trim fit for your beautifully finished deck. Plus, you’ll save yourself stress over service and maintenance of your RDI trims with their lifetime warranty. 

Adjustable Base Post Trim Installation Instructions:

  • Simply snap the four pieces together to assemble and disassemble.

Any questions with installation, please call 1-888-758-7678

Warranty Information

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.

Transferable Limited Lifetime Warranty Vinyl Railing Who is covered: • The limited lifetime warranty covers single-family residential properties only. This limited warranty extends to the original purchaser and one (1) individual transferee as specified herein. • A twenty (20) year limited warranty covers any other type of building or property including those owned by corporations, governmental agencies, partnerships, trusts, religious organizations, schools, condominiums, homeowner associations, cooperative housing arrangements and apartment buildings. The warranty period will be twenty (20) years following the original date of Product purchase.

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