Lowest Prices on Mailboxes, Period.

Mail Boss Quad Mount Locking Mailboxes with Post

  • The ultimate in Quad Mailboxes!
  • This USPS approved quad mount mailbox sets the standard for high security and the best protection against mail theft, identity theft and vandalism.
  • Each Mail Boss Quad Mount Mailbox system comes with 4 of Mail Boss’ highly popular locking mailboxes. Each locking mailbox features a commercial grade 7-pin brass core tube lock, patented anti-pry latch locking system and 12 and 14-gauge steel complete with powder-coat finish.
  • This 4 multi-mount mailbox system comes with Mail Boss’ 4 Box Spreader for mounting the 4 mailboxes. This turns the Mail Boss’ legendary post into a multi-mailbox solution! Made from 12-gauge welded steel and available in matching powder-coat finishes.
  • Choose from the standard In-Ground Post or upgrade to the Surface Mount Post if you need to fasten this Mail Boss multi-unit mailboxes to the sidewalk or curb.
  • Attractive powder coat finish options include Black, White, Bronze or Granite (see below).
  • Each Quad Mount Mailbox system also comes with 4 sets of 3 keys, plus reflective house numbers, drill bit and post mount mailbox mounting hardware.
  • Check out more Multi-Unit mailboxes online at The MailboxWorks.
Available Finishes
Mail Boss Post Mount Mailbox Black
Mail Boss Post Mount Mailbox Bronze
Mail Boss Post Mount Mailbox Granite
Mail Boss Post Mount Mailbox White
Self Applied Front and Side Lettering
Mail Boss Post Mount Mailbox Lettering
Mailbox Posts
Mail Boss Mailbox In-Ground Post
In-Ground Post
Mail Boss Mailbox Surface Mount Post
Surface Mount Post
Mail Boss Post Mount Mailbox Specs
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Our Low Price: $924.00FREE SHIPPING
Availability: In Stock Ships In 1 Day
Mail Boss Mailbox Finish More Info
Mail Boss Mailbox Post More Info
Front Lettering - Self Applied
Self Applied Front Lettering More Info
Mailbox Details
Item Number:
  • Mailbox
  • In-Ground Post
  • Surface Mount Post
  • Quad Spreader Bar
  • Mailboxes
  • In-Ground Post
  • Quad Spreader Bar
  • Lock with 3 Keys
  • Reflective House Numbers
  • Installation Hardware
  • Mailbox
  • 13.5"H x 11.25"W x 21"D
  • In-Ground Post
  • 43"H x 4"W x 4"D
  • Surface Mount Post
  • 27"H x 4"W x 4"D
  • Quad Spreader Bar
  • 2"H x 47.5"L x 5"D
  • Mailbox
  • 37 lbs
  • In-Ground Post
  • 14 lbs
  • Surface Mount Post
  • 16 lbs
  • Spreader Bar
  • 13 lbs
  • Mail Boss Mailboxes
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