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TrailMaster™: 700 Series (Residential)

Ideal for private residential use and business needs.

  • U.S. Postal Service Approved
  • Holds over two weeks average mail delivery
  • Combines convenience of a traditional mailbox with the security of locked storage
  • Available in a variety of colors and mounting options
  • Mail slot for incoming mail and secured door for incoming mail area
  • Outgoing mail shelf
  • Mail drops to locked area


  • Constructed of heavy gauge electro-galvanized steel
  • No rivets
  • Dust-proof, shuttered lock prevents corrosion of lock cylinder
  • Three keys per lock
  • Pedestal base option

Pedestal Base Option:
  • Underground
  • Pad Mount


Installation: For ground mounting, Security Manufacturing offers a U.S. Postal Service approved aluminum pedestal base specially designed for the TrailMaster™ box. Simply mount the pedestal in a concrete pad before ground installation.

Other Mounting Options:

  • Customer provided 8 x 8 pressure treated post
  • Customer provided stucco or brick housing
  • Wall mounted, surface mounted, semi recessed

SMC Products
Cluster Box Units
4C & Horizontal
Postal Specialty
Private Mailbox
Secure Locking Mailbox
Vertical Mailbox

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 Download Product Info

Download Locking Mailbox product brochure (53kb pdf)

Download Trailmaster product brochure (626kb pdf)

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Overall: 16" x 10¼ x 20¼
406mm x 260 x 514

Outgoing Mail Compartment:
3½" x 9⅞ x 8
89mm x 251 x 203

Slot: 1¾" x 10¼ 
45mm x 260

Maximum Letter Size: 10" x 12
254mm x 305


Mailbox: 25 lbs
20 lbs


gray powder coat


black finish

hunter green

white finish



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  Security Manufacturing Corp.
   700 Freeport Pky Ste 300, Coppell, TX  75019 
   Tel: 800-POBOXES - (800-762-6937)