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43" Mailbox Post In-Ground Mounting Post fit Over 4"x4" Wood Post,43 x 4 x 4 inches Heavy Duty Outside Mailbox Post-Mount Support Most Standard Dual Mailboxes of Curbside Residential

Guon-Wuvl
Category: Tools & Home Improvement > Hardware > Mailboxes & Accessories > Mailbox Accessories & Hardware > Mailbox Posts

Price

$95.99

Rating

4.0(2 reviews)

Description

In-Ground Mailbox Mounting Post,43" x 4" x 4" Heavy Duty Mailbox Post for Outside Directly surface mounted or over-wood-post mount Works with most standard, large, and extra-large mailboxes Heavy-duty galvanized steel construction-resists rust and corrosion Solid and well constructed with a high gloss to match the mailbox perfectly Durable powder-coated finish provides additional protection against rain, snow, sun Secure and won't get rusty or damaged through the winter months, better than wooden posts Fit with wood post/concrete base: The 43” mailbox post mounting is designed to slip over an existing 4"x4" wood post or can be installed directly into the ground with concrete, offering adaptability for various setups. Package including: The steel mailbox post for outside comes with box spreader bar for two-mailbox applications, includes necessary mounting hardware (screws and wrench) and features pre-drilled holes for mailbox attachment (4x4 wood post and mailbox NOT included) USPS height spec: (for 43” mailbox post) Install mailbox post over a 4x4” treated post Bury the mailbox post in ground approximately 12" 41" - 45" from the road surface to the bottom of the mailbox Front face of the mail box should be between 6-8” back from the side of the road surface Tips for more stable: Pack soil firmly around the mailbox post Bury deeper (3-4 feet in cold climates) for better hold Used with a pressure-treated 4"x4" wood post inside the steel post for added depth and stability When concrete is recommended: Loose or sandy soil conditions Areas with high wind exposure For maximum security and longevity To meet the 12" burial depth for USPS height requirements

Key Features

  • Our 43″ in-ground mailbox post designed to support most standard post-mount mailboxes. Suitable for bottom-mount installation and is intended for 4x4 post-style system(bottom-mount bolt spacing). Some models may require minor drilling due to differences in mounting hole patterns.
  • Heavy-Duty & Durable Construction: The mailbox post mount made from thick, high-gauge galvanized steel with weather-resistant powder-coated finish for rust-proof, waterproof, anti-corrosion and chipping.
  • Sturdy and strong in-ground mailbox mounting post to support heavy or extra large mailboxes, keep stable in high winds and offers long-term stability to withstand rain, snow, sun and and harsh weather conditions.
  • Versatile Mounting Options: 43"x4''x4'' mailbox post can slide over standard 4''x4'' wood post for deep in-ground installation or direct surface mount on concrete base. (4x4 wood post and mailbox NOT included)
  • Pre-drilled screw holes for mailbox attachment and included bolts with mounting plate simplify mailbox post mounting, more flexible to locate the mailbox so it's parallel to the road.
  • Designed to meet USPS rules for mailbox height 41-45”(from box bottom to ground), front of the letter opening (when closed) is 6- 8” from the street surface or curb. For 43" long in-ground mounting post, the actual depth of the stake underground is about 12”, with a fluctuation of up to 2”.
  • Metal mailbox post for outside with smooth edges and a firmly welded top mounting plate ensure safe handling and modern look for front yards, driveways and curbside residential use, enhance curb appeal.
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Product Details

Product ID

B0G6LX1ZYR

ASIN

B0G6LX1ZYR

Category

Tools & Home Improvement > Hardware > Mailboxes & Accessories > Mailbox Accessories & Hardware > Mailbox Posts

Reviews

2

Prime Eligible

Yes

Last Scraped

2/18/2026

Technical Details

Access locationFront
AsinB0G6LX1ZYR
Best sellers rank#166,319 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #24 in Mailbox Posts
BrandOKBA
ColorBlack
Customer reviews4.0 4.0 out of 5 stars (2) 4.0 out of 5 stars
Date first availableDecember 12, 2025
Item model number43 x 4 x 4 inches
Item weight20.7 pounds
ManufacturerOKBA
Mounting typePost Mount, Surface Mount
Product dimensions3.94 x 3.94 x 42.95 inches
Style43" Mounting Post+Double Plate

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