Over The Top Post for Avalon Railing System by RDI
What the RDI Avalon Over‑The‑Top Post Is
- The RDI Avalon Aluminum Over The Top Post is a structural railing post specifically designed for Avalon installations where the top rail runs over the post instead of nesting between posts. This configuration creates a clean continuous top rail look across your deck or balcony.
- These are not sleeves; they’re full structural posts with base plate, sandwich plate, and trim covers included for surface mounting on your deck or patio framing.
How It’s Used
Over‑the‑Top Railing Layout
Instead of the typical method where the railing top rail slides between posts (nesting), the over‑the‑top post lets the top rail sit above the post — a design often chosen for aesthetic or architectural reasons.
- A continuous top rail can create a cleaner, uninterrupted line across the railing run.
- Works with standard Avalon infill options like square balusters or glass slat beam kits.
Tip: When using over‑the‑top posts, Avalon railing panels must be cut up to 4″ shorter than the top rails so everything fits correctly.
What’s Included
Each over‑the‑top post assembly typically includes:
- Powder‑coated aluminum post body
- Welded surface mount base plate for secure attachment
- Metal sandwich plate (for added base rigidity)
- Trim cover pieces to hide hardware and give a finished appearance
- Installation instructions and any required shims.
Support hardware like top rail brackets (e.g., for Oberon, Pellinore, Tristan styles) is sold separately, and you’ll need these to secure the rail over the posts. One example is the RDI Avalon Over‑The‑Top Post Bracket.
About this product...
Durable powder-coated aluminum is AAMA certified and rust proof. And with over 10,000 hours of salt-spray testing (used to accelerate corrosion performance of a coating system), Avalon performs at more than 3 times the industry standard of 3,000 hours! It exceeds most all commercial and residential codes and is supported with a limited lifetime warranty.
Post assembly used for the Avalon over the top bracket system.
