Answering the need for organized curbside mail, these double mailbox posts provide two mailbox hookups on a single sturdy stand. They’re ideal for multi-family properties, shared driveways, or separating mail and packages for different recipients. The selections below emphasize durability, compatibility with standard 4×4 posts, and easy installation. Each option is best for specific layouts and climates, so choose based on post type, mounting method, and whether you need a planter feature or a simple dual-head design.
| Product | Best For | Mount Type | Material |
|---|---|---|---|
| Colingmill Double Mailbox Post, 43″ Galvanized Steel Black Mailbox Stand | Rugged dual-mailbox setup for harsh weather | Concrete or wooden post | Galvanized steel |
| Mayne Rockport Double Arm Mail Post | Flexible styling, two arm supports | 4×4 post compatible | UV fade resistant polyethylene |
| Mayne Newport Plus Double Mailbox Post | Classic dual-head with simple mounting | 4×4 post compatible | UV fade resistant polyethylene |
| Novabright 66in Double Mailbox Post | Heavy-duty all-weather reliability | 4×4 wood or sleeve mount | Galvanized steel |
| Ilyapa Double Mailbox Post for Outside | Universal mounting for broad mailbox range | Universal bracket plate | Powder-coated steel |
Colingmill Double Mailbox Post, 43″ Galvanized Steel Black

Best for heavy-duty outdoor use, this Colingmill post is designed to hold two mailboxes on a single steel stand. It features a durable galvanized steel construction and stainless steel screws to resist rust and corrosion in rain, snow, and wind. The four-sided design blends into most driveways and landscapes, offering a secure base with versatile mounting options. It can be installed directly into concrete or fixed to a wooden post, making it adaptable for various property setups.
Who it’s best for: households needing two mailbox locations without two separate stands. Why selected: robust base and compatibility with most standard mailbox styles provide long-term durability. Limitation: as a two-mailbox system, ensure your layout accommodates two units side by side and check mailbox mounting compatibility before purchase.
Mayne Rockport Double Arm Mail Post – Black

This product emphasizes flexible styling with two arms, designed to accommodate two mailboxes while allowing you to choose a preferred 4×4 post and mailbox components. It uses UV fade resistant polyethylene to keep color and durability over sun exposure and weather, delivering a low-maintenance, long-lasting curbside display. It does not include the standard post, mailbox, or mailbox mount, so you can tailor the entire installation to your preferred style.
Who it’s best for: homeowners who want to customize components for a unique look. Why selected: it offers two arms and a stable mount when paired with a compatible 4×4 post. Limitation: requires separate purchase of the post, mailbox, and mount for full installation.
Mayne Newport Plus Double Mailbox Post

This option mirrors a simple, sturdy approach to dual-mailbox mounting. It supports two mailboxes up to 8 lbs each and fits a standard 4×4 post, ensuring a secure installation for everyday mail delivery. The UV fade resistant polyethylene construction helps maintain color against sun and weather.
Who it’s best for: households wanting a straightforward, reliable dual-mount solution. Why selected: reliable support for two light-to-moderate-weight mailboxes with broad compatibility. Limitation: assembly and mounting require a compatible 4×4 post and corresponding mailbox hardware.
Novabright 66in Double Mailbox Post

Novabright offers a heavy-duty galvanized steel double-head post designed for two standard mailboxes side by side. Its weather-resistant construction provides durable performance in sun, rain, snow, and wind. It is designed to fit two standard mailboxes and can be paired with a 4×4 sleeve or wood post mounting for solid support.
Who it’s best for: customers needing extra strength to withstand harsh climates and higher wind loads. Why selected: solid galvanized construction and dual-head design maximize longevity and stability. Limitation: may require a concrete base or proper sleeve mounting for optimal stability, especially in loose soil or sandy ground.
Ilyapa Double Mailbox Post For Outside

Designed with a universal mounting bracket, this Ilyapa post supports a broad range of mailbox designs. Constructed from 18-gauge metal with a powder-coated finish, it offers durability and weather resistance for year-round use. Its minimalist design blends well with various outdoor decors and reduces the visual heft of a dual-post setup.
Who it’s best for: buyers seeking broad compatibility across mailbox styles. Why selected: universal mounting bracket simplifies installation with many brands. Limitation: check the exact mailbox compatibility to ensure mount alignment and hole patterns match your units.
Colingmill Black Double Iron Mailbox Post With Planter Box

A double iron mailbox post with an integrated planter box adds curb appeal while offering two mailbox mounting positions. Adjustable mounting plates fit many standard mailbox sizes, and the post can be set in concrete for a secure ground mount. The heavy-duty iron construction aims to resist outdoor stresses like rain and wind.
Who it’s best for: homeowners wanting extra greenery and two mailbox hookups in one structure. Why selected: planter box adds aesthetic value while maintaining sturdy dual mounting. Limitation: heavier weight and installation complexity may require professional assistance or more planning for concrete setting.
Buying Guide: Key Considerations For Your Double Mailbox Post
- Post compatibility: Most product lines are designed to fit standard 4×4 posts. Confirm the required post type (wood or metal sleeve) and the mounting patterns before purchasing.
- Material and weather resistance: Galvanized steel and powder-coated finishes offer strong rust resistance. Polyethylene components resist UV fading but may wear differently in extreme climates.
- Mounting method: Concrete-in ground mounts provide stability in high wind areas. Wood-post installations offer flexibility in placement but may require maintenance to prevent rot.
- Mailbox compatibility: Some posts are sold without mailboxes to allow custom configurations. Ensure the mounting plates and brackets match your chosen mailboxes’ dimensions and hole patterns.
- Aesthetics and footprint: Decide whether you prefer a minimalist dual-head design or a planter-equipped option for curb appeal. Check the overall footprint to avoid crowding the sidewalk or driveway.
Frequently Asked Questions
- Do these posts require professional installation? Some setups can be DIY, especially those designed for concrete or existing 4×4 posts. Heavier or planter-integrated options may benefit from professional help.
- Can I use any two mailboxes with these posts? Most posts support standard residential mailboxes, but always verify the mounting plate compatibility and weight limits for two units.
- Are metal posts weatherproof? Galvanized steel and powder-coated finishes offer strong rust and corrosion resistance, suitable for outdoor use in varied climates.
- Is a planter box included with any option? Some models include a planter or planter-compatible design, while others are strictly dual-mailbox mounts. Check the product’s features list.
- What installation surface is best? A concrete base provides the most stable footing in windy areas, while wood or sleeve-mounted posts offer flexible placement and easier relocation.
- Can these posts be used for more than two mailboxes? The listed products are designed for two mailboxes; triple configurations typically require a custom or different multi-head solution.