4” x 4” Elite Vinyl Post Trim by RDI
What It Is
The RDI 4″ x 4″ Elite Vinyl Post Trim (sometimes called an elite trim ring) is a vinyl base trim piece designed to slip over the bottom of a 4″ x 4″ post or post sleeve (such as an RDI post wrap) to create a clean visual transition between the post and the deck surface. It’s part of RDI’s trim accessories used with their vinyl railing and post systems.
Key Features
Finished Base Look
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Covers the gap between your post (or post sleeve) and the deck surface, hiding raw cuts, shims, or mounting plates for a more polished appearance.
Material
Color Options
Simple One-Piece Design
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A single, one-piece trim ring that you slide onto the post or sleeve before installation of the post sleeve.
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Because it’s a trim ring, it’s meant to integrate seamlessly with posts and railing components rather than stand out.
Made in the USA
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Produced domestically and backed by RDI’s reputation alongside their railing and trim catalog.

WHAT’S INCLUDED:
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1-piece base post trim (1)
About this product…
Post trims are pieces of material that wrap around the bottom of your 4x4 post sleeves or posts 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 for a simple yet accented post trim, consider this vinyl option for a fraction of the hassle and cost of real wood. Not only is the vinyl option cost-effective, these products are crafted using weather-resistant vinyl, making this product durable and incredibly low-maintenance.
Since these trims are one piece, you must slide the trim over the existing 4x4 post sleeve. 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.
4” x 4” Elite Vinyl Post Trim Installation Instructions:
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Simply secure the trim into your decking, then slide the baluster into its center
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.