Vinyl Column Adapters
On Sale!
We offer a line of Round Column Adapters for vinyl railing. They enable you to attach a flat wall mount (level or stairs) to either a 8″ or 10″ round column. Please click on each item to get the actual dimensions of the adapter to make sure that it will fit your mounts.
The vinyl column adapters will fit a wide variety of vinyl railings and can be cut down to fit your project. Please contact us for additional sizes and colors.
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Frequently Asked Questions
What are round column adapters used for?
They provide a flat mounting surface on 8″ or 10″ round columns, allowing standard brackets to be installed securely.
What sizes do these adapters fit?
MMC offers adapters for 8″ and 10″ round columns, suitable for both flat and stair railing brackets.
What material are MMC’s adapters made from?
These adapters are made from extruded vinyl.
What do the adapters’ dimensions measure?
For 8″ and 10” column adapters:
- Small - 3-3/4”W x 3-1/4”T
- Medium - 3-3/4”W x 4-3/8”T
- Large - 3-3/4”W x 5-1/2”T
- Stair - 3-3/4”W x 6-1/2”T
Are the adapters sold individually or in packs?
They are sold in 4-packs enough for a railing section.
Can vinyl column adapters be trimmed on-site?
Yes—vinyl adapters can be cut down to fit specific project dimensions, accommodating a variety of vinyl railing systems.
Do I need separate adapters for stair vs. level installations?
Yes—MMC offers different sizes to accommodate your mounts for both 8″ and 10″ columns.
How are adapters installed?
Adapters wrap around the column to create flat mounting surfaces. They’re secured using your mounting brackets which attach directly to them (You may need to provide longer screws if necessary).
Are these adapters compatible with vinyl and aluminum railings?
Yes—they work with both aluminum railing and vinyl railing systems, offering flexible solutions.
Why should I use column adapters instead of custom carpentry?
Adapters offer a faster, more precise, and less labor-intensive solution than building flat column plates by hand, saving time while maintaining aesthetics and structural integrity.
FREE SHIPPING with a purchase of $100 or more*
*Applies only to the Continental U.S: Westbury Gates, Verticable Sections, and Sorrento Sections have a $1,000 minimum for free shipping. Juliette Balconies require a $1,500 minimum for free shipping. Longer Westbury sections (7–8′) have a $500 minimum. Courtyard Fencing purchases cannot be combined with non-Courtyard items to qualify for free shipping. Whether or not your order qualifies, please select “Free Shipping” at checkout. Our shipping department will contact you with an estimate if needed.
Some Westbury Tuscany colors are in stock and are ready to ship immediately We also have Quick Ship on Riviera C30 style and Verticable C80 in Textured Black and Textured Bronze which can ship in 2-4 weeks. Please call first to check on available inventory in Westbury. Some special-order products have a 3-4 weeks order time.
