Choosing the right mailbox post for two mailboxes means balancing strength, weather resistance, and ease of installation. The following selections are designed to support two units, provide stable mounting, and stand up to year-round use. Below you’ll find concise product highlights, visuals, and practical considerations to help you compare options at a glance.
The quick reference table below summarizes five top picks for two-mailbox setups, focusing on durability, mounting method, and assumed installation context.
| Product | Brand | Key Benefit | Mount Type |
|---|---|---|---|
| Hazelton Side-by-Side Mailbox Post, Black | highwood | Sturdy, two-sided support with ground installation | In-ground post |
| highwood Hazelton Two-Sided Mailbox Post, Coastal Teak | highwood | Classic double-post design with durable, fade-resistant finish | In-ground post |
| Salsbury Industries 4872BLK Deluxe 2 Sided In Ground | Salsbury Industries | Two arms with universal compatibility for two boxes | In-ground post |
| Ilyapa Double Mailbox Post for Outside | Ilyapa | Heavy-gauge metal, universal mounting, versatile | In-ground post |
| Simplay3 Classic Plastic Residential Mailbox & Post Mount Combo Kit | Simplay3 | Double-door design with included hardware and numbers | Post-mount (surface) |
Hazelton Side-by-Side Mailbox Post

The Hazelton double mailbox post provides a robust, ground-anchored solution suitable for two mailboxes or two mailbox adapters. It features a durable, weather-resistant design with a built-in shelf that serves as a platform for a mailbox adapter plate or as direct support for a mailbox. The assembly is designed for in-ground installation and is backed by a lengthy residential warranty, emphasizing long-term reliability in various climates. The unit is crafted in the USA and prioritizes stability as a two-sided post.
highwood Hazelton Two-Sided Mailbox Post

This coastal teak finish version mirrors the classic double-post concept with the same ground-install design. It includes a shelf to support two mailboxes or adaptors and is marketed with a strong warranty and weather resistance. The 76.8-inch height offers ample clearance, while the freeze-thaw and sun exposure considerations are addressed by the durable composite material used by highwood.
Salsbury Industries 4872BLK Deluxe 2 Sided In Ground

Designed specifically for two mailbox attachments, this black powder-coated post offers sturdy, two-arm support with standardized dimensions. It is well-suited for two Salisbury Rural or Townhouse mailboxes and emphasizes durability with a corrosion-resistant, in-ground installation approach. The product’s mounting arms are sized to accommodate two units, simplifying retrofits where existing boxes are ready for two-sided mounting.
Ilyapa Double Mailbox Post for Outside

Constructed from high-grade 18-gauge metal with a white powder-coated finish, this post is designed for two mailboxes and includes a universal mounting bracket plate. It emphasizes resilience in extreme weather and chemical exposure, making it apt for long-term outdoor use. The mounting bracket supports compatibility with a broad range of mailbox styles, offering installation flexibility for varied curb sides.
Simplay3 Classic Plastic Residential Mailbox & Post Mount

The Simplay3 kit centers on a traditional double-door residential mailbox with post-mounting hardware and a magnetic access system for secure front and rear retrieval. Included components cover basic mounting hardware, a post cover, and address number decals. The design supports larger mail capacity and small packages while maintaining a simple, low-maintenance profile suitable for most residential curb lines.
Buying Guide: What to Consider When Choosing a Two-Mailbox Post
- Mounting type: In-ground posts generally offer higher stability for two boxes with longer service life, but surface-mount or post-mount kits can be easier to install on concrete or paved driveways.
- Material and finish: Weather resistance matters in harsher climates. Powder-coated steel and composite woods resist rot and rust better than untreated wood; look for fade-proof finishes for long-term curb appeal, especially in sunny regions.
- Width and compatibility: Check the arm spacing and overall width to ensure two mailboxes will fit without crowding. Some posts are designed around specific mailbox models, while others offer universal mounting brackets.
- Weight bearing and height: Taller and heavier posts generally provide stronger stability, particularly in windy environments. Consider height to ensure mail delivery clearance and road safety for your area.
- Warranty and support: A longer residential warranty indicates broader manufacturer confidence in durability and post-service assistance.
- Aesthetic fit: Finishes like Coastal Teak, Black, Rubbed Bronze, or classic white complement house styles and landscaping. If you’re aiming for a cohesive curb aesthetic, align with your home’s exterior palette.
- Packages and accessories: Some options include shelves, brackets, or address plaques. If you already own specific mailbox models, verify compatibility with the mounting hardware.
- Maintenance requirements: Consider how easy it is to clean and inspect the post, especially in areas with snow removal or high pollen counts, which can affect visibility and function.
Across these options, the main trade-offs involve installation method, aesthetic finish, and the level of customization for two-unit setups. For installers prioritizing ground stability and a two-sided aesthetic, in-ground posts from Hazelton and Salsbury provide solid, ready-to-mount solutions. If you prefer a more modular, lighter-weight approach or want a broader range of mailbox compatibility, metal or plastic dual-post kits such as Ilyapa or Simplay3 offer versatile configurations with straightforward assembly. Consider your climate, desired appearance, and how much you value long-term maintenance when choosing the best two-mailbox post for your curb.