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SHIPPING - You will find free shipping on over 10,000 items every day. No one likes to pay for shipping, we do our best to eliminate it and offer the lowest prices.

RETURNS - We understand that exchanging and returning products is often a frustrating experience, but we strive to make the process a simple and straightforward one. If you are not satisfied with your purchase, we offer a 15 day return policy (click for details).

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Original Keystone Outer Post/Curve Brace Custom Order for Multi Units of 6 or more (Contact us for Quote)

Original Keystone Outer Post/Curve Brace Custom Order for Multi Units of 6 or more (Contact us for Quote)

Original Keystone Outer Post/Curve Brace Custom Order for Multi Units of 6 or more (Contact us for Quote)

Product Details:

Original Keystone Outer Post/Curve Brace Customer Order for Multi Units of 6 or more (Contact us for Quote)

All Original Keystone and Signature Keystone Multi-Mount systems can be CUSTOMIZED to accomodate from two boxes to fifty (or more). Please contact our live assistant to discuss your project and to learn about the distinctive accessories that will help you devise the look you are seeking.  Postal workers and residents alike will appreciate the horizontal plane that helps them avoid bending and snooping.  Lockable inserts are available and even large orders ship quickly.

This durable cast aluminum mount mailbox system is built and designed to withstand the harshest of elements and comes complete with Posts, Triple and Single Mount Beams, Finials, Curved Braces, and Post Cuffs. Mailboxes and plaques sold separately.

Metal and Finish
The Keystone Series Mount Mailbox System is constructed from durable A360 rust-proof cast aluminum. Extremely sturdy and light-weight at the same time, cast aluminum is 100% rust-resistant. It is formed by pouring aluminum into a mold of the end product. During the manufacturing process, the aluminum goes under substantial amounts of pressure, which produces an extremely dense material that can withstand the harshest of conditions.

A five-stage, powder-coated paint process is utilized to ensure that the Keystone Series Mount Mailbox System is quality-wise consistent, durable, and possess a high-quality finish. Powder coating has ultraviolet ray (UV) inhibitors that protect the surfaces, making the finish resistant to chipping, scratching, fading, and wearing.


  • Mailboxes
  • Address Plaques
  • Newspaper Holders
  • Locakable Inserts
  • Posts attractively mounts multiple mailboxes
  • Design includes Posts, Triple and Single Mount Beams, Finials, Curved Braces, and Post Cuffs.
  • Keystone posts are designed to match Keystone Mailboxes
  • Made from weather resistant, rust proof cast aluminum
  • Maintenance free, powder coated finish
Related Downloads:
PDF LOGORelated Products Catalog
PDF LOGOInstallation Instructions
Manufacturer Details:

About Gaines Mailboxes

In 1991, Gaines Manufacturing recognized a need in the market for a line of beautifully designed and expertly manufactured mailboxes. To meet this consumer need, Gaines Manufacturing designed and brought to market the Classic Mailbox Collection. It became an overwhelming success and provided the impetus for future mailbox lines including The Keystone Series and The Wallmount Mailbox...

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    60,000+ Satisfied Customers

    and counting...
    What Makes Us Different?

    With 16,000+ Satisfied Customers, our biggest asset is undeniably our team!. We have outstanding customer service reps that are some of the friendliest and most knowledgeable in the industry.

    We value our customer's time; because of this, we are committed to the easiest ordering process imaginable. As a result, past customers love our prompt service and delivery, our expertise, and easy checkout process.

    Even though we are known for easy ordering, we're constantly working towards creating an even easier checkout process that allows you to save more time and feel more confident in your buying decision.

    Lowest Prices - We work hard to cut marketing expenses, so that we can re-invest that money into lowering our prices. Our business strategy is knowing that if we can give you the best value on the internet, with outstanding service, then you'll tell your friends about us. In our opinion, this is the best form of marketing.

    High Quality Products - Our buying team works hard to make sure that every single product featured in our catalog and websites are of the utmost quality. If a manufacturer is producing low quality products, we won't feature them.

    Prompt Delivery - We value your time, so we work hard with our manufacturers to process your order within 24 hours. Often times, we can process your order the same day.

    Wall Mount Mailboxes Locking Mailboxes Commercial Residential