Customize Your Mailbox
Choose your mailbox options.
Standard size · 20.5" L × 8.5" W × 8.25" H. Photos show mailbox finish; flag color and engraving are selected separately.
Available on stainless steel doors only.
Post included in displayed price. Choose your post configuration below.
Select your required post.
House numbers
Optional · One price covers your complete address, applied to both sides of this mailbox.
Choose your color
Choose your size
Choose your finish
Choose your style
Premium aluminum construction. Modern design. Built for long-term outdoor durability.
Onyx is a premium post-mounted aluminum mailbox system designed for modern homes and demanding outdoor environments. Built from 14-gauge 5052-H32 aluminum with a durable powder-coated finish, it offers excellent corrosion resistance while maintaining a clean architectural look.
Features:
- 14-gauge 5052-H32 aluminum construction
- USPS Size C2 compliant
- Weather-resistant powder-coated finish
- Magnetic latch for smooth, secure closure
- Black or white mailbox finish options
- Matching black or stainless-steel door configurations
- Optional locking system
- Optional laser-engraved house numbers on compatible stainless-steel doors
- Compatible aluminum post included in the configured system price
Dimensions: 8.5" W × 8.25" H × 20.5" D
Material: 14-gauge powder-coated aluminum
Post Options:
Choose a 2×2 or 4×4 in-ground aluminum post directly on this page. The displayed system price includes the standard 2×2 post, with the 4×4 option shown as an upgrade.
House Numbers:
Add side numbers or choose compatible stainless-door engraving for a clean, modern address display.
Lead Time:
Please allow approximately 7–14 business days for production before shipping or installation.
Shipping & Installation:
Nationwide shipping is available. Professional installation is offered separately throughout Palm Beach, Broward, and Miami-Dade counties.
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