KOMOHOM 27" Mailbox Post with Mounting Bracket Installed On Concrete Floor, Compatible with Mail Boss, Architectural MAILBOXES, Gibraltar, hykolity, ShoppingOnBed, adoorn

Wide Compatibility: The adapter plate is compatible with Mail Boss, Architectural MAILBOXES, Gibraltar, hykolity, ShoppingOnBed, and adoorn.

Reinforced Base: Designed to strengthen the mailbox foundation and enhance overall stability. The widened adapter plate not only accommodates various mailbox sizes but also provides reinforced bottom support.

Dual-Flange Design: In-Ground Installation: The extended flange is pre-buried in concrete, significantly improving stability within the footing. Surface Mount Installation: The extended flange allows direct mounting onto the ground surface, eliminating the need for an additional mounting base.

Fully Sealed & Moisture-Resistant: The fully enclosed design effectively blocks moisture and air, protecting the interior of the post and extending its lifespan. The black painted finish enhances water resistance and rust prevention.

Included Components: Includes a 27-inch post, mailbox adapter plate, and all necessary installation hardware (Note: Excludes anchors required for surface mounting).

Important Notes: ⚠️ Compatible Mailbox Type: Only suitable for standard-sized mailboxes with pre-drilled mounting holes on the bottom. ⚠️ In-Ground Installation Requirement: Concrete must be used for in-ground installation and must completely cover the flange. ⚠️ Surface Mount Requirement: For surface installation, customers must provide their own anchors suitable for local ground surface conditions.

Wide Compatibility The adapter plate supports multiple mainstream mailbox models including (but not limited to): Mail Boss, Architectural MAILBOXES, Gibraltar, hykolity, ShoppingOnBed, adoorn. Reinforced Base Widened adapter board enhances structural stability Reinforces mailbox base support while accommodating varied mailbox dimensions Dual-Function Flange Design ▫️ In-Ground Mount: Extended flange embeds in concrete for superior stability ▫️ Surface Mount: Flange secures directly to ground surfaces – no additional base required Weatherproof Construction Fully sealed design blocks moisture/air intrusion Black powder-coated finish prevents rust and extends post lifespan Package Contents 27-inch post ×1 | Mailbox adapter plate ×1 | Installation hardware kit (Note: Ground anchors for surface mounting NOT included) Installation Methods IN-GROUND MOUNT Partially embed post underground with concrete footing SURFACE MOUNT Secure post directly to solid surfaces Adjust post length according to chosen method before installation Installation Instructions A. IN-GROUND MOUNT Excavate Dig hole (Depth/Width ≥ Post diameter ×2) Insert post vertically; adjust exposed height Concrete Setting Pour concrete around post covering entire flange Cure 24-48 hours Mount Hardware Attach mounting bracket to post top Install Mailbox Secure mailbox to reinforced adapter plate B. SURFACE MOUNT Position & Anchor Place post at desired location Secure using customer-supplied anchors (M10+ recommended) Mount Hardware Attach mounting bracket to post top Install Mailbox Secure mailbox to adapter plate Critical Notes ⚠️ Compatibility Restriction Only compatible with mailboxes having pre-drilled bottom mounting holes ⚠️ Exclusions Ground anchors not included – required for surface mounting ⚠️ Concrete Requirements (In-Ground) Mandatory concrete footing covering flange entirely 24-48 hour curing period essential ⚠️ Flange Utilization (In-Ground) Flange MUST be fully embedded in concrete for stability Technical Specifications Material: Heavy-gauge carbon steel Finish: Weather-resistant powder coating Post Height: 27 inches (68.6 cm) Adapter Plate: Reinforced widened design For optimal performance, verify mailbox compatibility before purchase