U.S. Mail Supply Categories

Indoor Commercial & Residential Mailboxes - Replacement & Private Use

All Mailbox Categories » Indoor Mailboxes - Replacement & Private Use

Indoor Commercial & Residential Mailbox Solutions

U.S. Mail Supply provides you with replacement and private use indoor mailbox solutions for multi-tenant locations, commercial buildings and institutions. We have a range of options, including horizontal mailboxes, vertical mailboxes and custom or private use horizontal mailboxes. Please call us if we can help point you in the right direction.

View all available mailboxes for sale from U.S. Mail Supply.

Safe and Secure Indoor Mailboxes

We are sure to have the right indoor mailbox for you no matter what your situation. From a small apartment building to an entire university, hospital or military base, we make sure everyone has a place to receive their mail in a space-conscious, efficient and convenient way. 

U.S. Mail Supply builds all our indoor mailboxes with aluminum and stainless steel and with the option of either rear loading or front loading, depending on your application or preference. We adhere to the US Postal Service's high standards and design our mailboxes for security and vandal resistance. We offer a huge variety of apartment mail boxes for sale for multi-family residencies across the United States - from indoor horizontal mailboxes to outdoor cluster boxes.

Indoor Horizontal Tenant Mailboxes

Horizontal Lockable Indoor Mail Boxes for Multi-Family Residences and Universities

Its rugged construction and heavy build make the USPS-approved Horizontal Mail Boxes ideal for many locations. These high-security mailboxes provide tenants with reliable and safe mail service.

Fully-Customizable Mail Supplies

Customize your tenants’ mailbox with three number decals or engrave up to six characters for identification. Choose from these powder coat finishes:

  • Bronze
  • Black
  • Dark bronze
  • Gold speck
  • Postal gray
  • Sandstone
  • Silver speck
  • White powder

These horizontal mailboxes are used for indoor use only. Documents and dimensions for installation can be found on our product page.

Vertical Lockable Indoor Mail Boxes for Residential and Commercial Use

The Vertical Mail box is perfect mailbox for tenants. These are corrosion resistant and rust proof to increase the service life of the mailbox. All indoor commercial mailbox units are available in the original aluminum silver finish. We also offer these powder coated finishes:

  • Brass
  • Bronze
  • Sandstone
  • Green

This mailbox comes with one name card holder per door for tenant identification. There are two installation options— recess mount or surface mount. You can count on highly-secure mailboxes for your tenants no matter which mounting method you choose.

Contact U.S. Mail Supply today at 262.782.6510 or 800.571.0147 for more information.