Big Box Stores (Home Depot, Lowe's, Ace Hardware): These stores are your most common and often most affordable source for ready-made wood mailbox posts.
The Home Depot: They carry a variety of wood mailbox posts, including cedar and pressure-treated options, often designed to fit over a 4x4 or for in-ground installation. You can check their website for specific Miami store stock.
Lowe's: Similar to Home Depot, Lowe's offers wood mailbox posts in various materials and styles, including cedar and pressure-treated wood.
Ace Hardware: You'll find wood mailbox posts here as well, often including natural red cedar and pressure-treated pine options.
Specialty Mailbox Companies (Local Miami):
Bella Master Mailbox: Based in Miami, they specialize in custom mailboxes and posts. They offer posts crafted from various hardwoods like Camaru, Cedar, Pine, Ipe, Jatoba, and Tigerwood, as well as painted wood and composite materials. They also offer local installation services in the South Florida area.
ASAP Mailbox in Miami: This company specializes in residential and commercial mailbox solutions, including installation and repair. While their website emphasizes other materials, they do offer "Mailbox With Posts" and are a good contact for local installation services.
Online Custom Builders:
Timber Build: They offer premium wood mailbox posts, often crafted from Western Red Cedar for durability and aesthetic appeal. They can also do custom orders based on your designs.
Etsy: Many independent artisans sell handmade wood mailbox posts on Etsy. You can often find unique designs, including cedar, rustic, and modern styles. Some sellers, like "BellaMasterMailbox" (who also have their own website), are based in Florida and offer installation.
Types of Wood and Considerations:

Cedar: A popular choice for mailbox posts due to its natural resistance to rot, decay, and insects. It's known for its rustic beauty.
Pressure-Treated Wood: This wood has been treated with chemicals to resist rot and insects, making it a durable and economical option for outdoor use.
Hardwoods (e.g., Ipe, Camaru): For a more premium and long-lasting option, some custom builders use very dense and naturally durable hardwoods, often found in high-end decking.
Mailbox Post Installation and Miami Regulations:

USPS Guidelines: The U.S. Postal Service has specific guidelines for mailbox placement and installation:
Height: The bottom of the mailbox or mail entry point should be 41 to 45 inches from the road surface.
Setback: The mailbox should be 6 to 8 inches back from the curb. If there's no raised curb, contact your local postmaster for guidance.
Post Size: The Federal Highway Administration recommends a 4" x 4" wooden support or a 2"-diameter standard steel or aluminum pipe.
Burial Depth: Bury your post no more than 24 inches deep.
Avoid Rigid Supports: The USPS advises against unyielding and potentially dangerous supports like heavy metal pipes, concrete posts, or farm equipment filled with concrete.
Miami Building Codes: While specific mailbox post codes might not be detailed as heavily as structural elements, it's important to be aware of general wood construction codes in the Florida Building Code, especially regarding:
Preservative Treatment: Wood posts supporting structures and in direct contact with the earth should be naturally durable or preservative-treated.
Fasteners: Ensure all connectors and fasteners are appropriate for outdoor use and treated wood (e.g., hot-dipped galvanized).
Concrete Footings: If using a concrete footing, ensure it meets minimum diameter and depth requirements (e.g., 10" diameter, 30" depth from finish grade, with minimum 24" post embedment).
FHWA Guidelines: Miami-Dade County's regulations for mailboxes align with the Federal Highway Administration (FHWA) guidelines, emphasizing breakaway posts for safety. Wood posts embedded no more than 24" into the ground are typically acceptable. Avoid concrete encasement below ground.
Before you buy or install, it's always a good idea to:

Check with your local postmaster: Confirm any specific local requirements for mailbox placement and type.https://www.uniqsolutions.tech/