Residential Mailbox Posts
Showing 1–24 of 70 results
WhitehallWhitehall Balmoral Post and Bracket with Finial (Choose Color)
3 Available Colors
Architectural MailboxesArchitectural Mailboxes Pacifica Mailbox Post
2 Available Colors
Residential mailbox posts are the structural and decorative foundation of every curbside mailbox installation. The right post determines mounting stability, curb appeal, and long-term durability. MailboxWorks has helped thousands of homeowners, contractors, and property managers find the right fit across 20+ years in the industry. Browse 74 options – from a basic mailbox with post setup to premium decorative configurations – by material, mount type, style, and budget to find the post your property deserves.
Mailbox Post Materials Compared
The material you choose determines how your post holds up over time, how much maintenance it demands, and how well it complements your home’s exterior. Here’s how the five major mailbox post materials compare:
| Material | Durability | Maintenance | Best For | Price Range | Notes |
| Cast Aluminum | Excellent | Very Low | Decorative installs, most climates | Mid–High | Whitehall and Gaines offer coordinated mailbox-and-post systems in matching finishes. Popular with HOA communities. |
| Steel (Powder-Coated) | Very Good | Low–Medium | Modern aesthetics, moderate climates | Mid | Strongest structural option. Upgrade to stainless in coastal or high-humidity climates. |
| Cedar / Wood | Good | Medium–High | Traditional and rustic homes | Low–Mid | Cedar resists rot better than most softwoods. Requires periodic sealing and staining. |
| Stainless Steel | Excellent | Very Low | Coastal and high-moisture environments | High | Salt-air corrosion doesn’t affect stainless. Best long-term value in marine environments. |
Explore our cast aluminum mailboxes and best mailbox post material guide for deeper comparisons.
Types of Mailbox Post Mounts
In-Ground Mailbox Posts
In-ground mailbox posts are the most common post mount mailbox configuration, using direct burial installation anchored in concrete or compacted gravel. A post-hole digger or rented auger handles the digging, and most DIYers finish the process in two to three hours.
- Depth: Buried 18–24 inches below grade
- Anchoring: Set in concrete or compacted gravel for maximum stability
- Base covers: Many include decorative covers that conceal the footing at grade level
- Anchor plate: A mailbox post anchor plate adds hold in loose or sandy soil
- Compatible materials: Most decorative aluminum and cedar posts use this method
Surface Mount (No-Dig) Mailbox Posts
A no-dig mailbox post bolts directly to an existing concrete pad or footing. No digging required. Homeowners replacing a damaged post where a concrete base already exists find this surface mount mailbox post option significantly faster. Verify your existing pad dimensions match the base plate specs before ordering.
Arm-Mount, Top-Mount, and Side-Mount Posts
These terms describe how the mailbox attaches to the post rather than how the post installs into the ground. Each configuration affects accessibility and daily usability differently.
- Top-mount: Most common configuration. The mailbox sits directly on a flat platform at the post’s crown.
- Arm-mount: A horizontal bracket extends 12–18 inches from the post, positioning the mailbox at curb reach with room for a newspaper holder below.
- Side-mount: The post extends above the mailbox itself, adding visual height and suiting decorative column styles.
Review our tips for choosing a residential mailbox post for side-by-side mount comparisons.
How to Choose the Right Mailbox Post
Start with your mailbox brand. Manufacturer-specific posts from Whitehall, Gaines, and Architectural Mailboxes are engineered to pair with their mailbox lines. Finish, scale, and mounting hardware all coordinate. If you’re working with a universal post, confirm the platform dimensions match your mailbox’s base. Post sleeves offer a third option: a decorative aluminum or vinyl casing that fits over an existing 4×4 post, letting you upgrade the look without a full mailbox post replacement.
Four considerations guide every mailbox post decision:
- Material: Match your climate and maintenance preference. Coastal properties need stainless or cast aluminum. Freeze-thaw climates benefit from vinyl or aluminum over wood. Moderate inland climates give you the full range of mailbox post ideas to work with.
- Mount type: Choose based on existing infrastructure and digging comfort. Surface-mount saves time if a concrete base exists. In-ground delivers the cleanest finished look for new installations.
- Style: Plain-profile posts suit modern and contemporary mailboxes. Ornate posts with scrollwork and finials complement traditional and Victorian-style homes.
- Multi-box needs: A double mailbox post suits shared driveways, while triple and quad options serve larger multi-unit properties. For the best mailbox and post combo options, explore our multi-family mailbox and post packages. For unique mailbox posts in coordinated configurations, browse our custom mailboxes page.
Need help narrowing it down? Call our experts at (866) 717-4943.
Mailbox Post Sizes and Dimensions
Standard mailbox posts are either 3×3, 4×4, 5×5, or 6×6 inches in cross-section and 60 to 72 inches in total length. That standard mailbox post size accounts for 18–24 inches buried below grade and 41–45 inches of mailbox post height above the road surface to meet USPS requirements. Here’s what to know about compatibility before you order:
- 3×3 and 4×4 posts: The most common cross-section for wooden mailbox posts and universal post sleeves. Most decorative aluminum and vinyl sleeves slip over a 4×4 post (actual dimensions 3.5″ x 3.5″).
- 5×5 and 6×6 posts: Used for heavier or more decorative installations where additional structural mass is needed (like metal mailbox posts)
- Mailbox platform dimensions: Standard platforms accept mailboxes approximately 11″H x 8.5″W x 21″D. Verify against your specific model’s specs before ordering.
- Arm/bracket reach: Arm-mounted posts extend 12–18 inches from the post center to position the mailbox door at curb reach.
Use these mailbox post dimensions as a compatibility check against your existing setup or chosen mailbox model.
USPS Mailbox Post Requirements
The standard USPS mailbox post height requirement places the bottom of the mailbox 41–45 inches above the road surface. Confirming your post meets USPS mailbox height rules before installation saves you from having to adjust or reinstall after the fact. Here are the key USPS mailbox post requirements at a glance:
- Mounting height: 41–45 inches from the road surface to the bottom of the mailbox
- Setback: 6–8 inches from the curb or road edge to the mailbox door
- Carrier access: The mailbox must be reachable by your carrier from their vehicle
Contact your local postmaster before installing in a new location. Placement approval varies by route. HOAs may impose additional restrictions on post style, finish color, and placement. Confirm both before purchasing. For the full regulatory reference, see the USPS Domestic Mail Manual.
How to Install a Mailbox Post
Most in-ground mailbox post installations fall well within DIY range. The mailbox post installation process involves:
- Checking USPS placement rules
- Digging an 18–24 inch hole
- Setting the post in concrete
- Mounting the mailbox at the correct height
Some posts ship with complete DIY mailbox post kits; decorative column posts may benefit from professional installation. For full step-by-step detail, see our complete mailbox post installation guide.
Why Choose Our Mailbox Posts
MailboxWorks carries 74+ decorative mailbox posts for sale from 10+ trusted manufacturers: Imperial, Whitehall, Special Lite, Gaines, Streetscape, Mail Boss, Architectural Mailboxes, Bobi, Post & Porch, and TedStuff. Cast aluminum, steel, stainless steel, and vinyl options give you the widest material selection in the mailbox post niche, covering every climate and style requirement. Orders over $30 ship free. Our US-based mailbox specialists bring 20+ years of experience to every call and can help you narrow down the right post when the product grid alone isn’t enough. Don’t take our word for it, our customers consistently rate us 5 stars for product quality and expert service.
Browse our full collection above or call our experts at (866) 717-4943 for personalized recommendations.
