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Salsbury Free-Standing Enclosure - for 3711 Double Column Unit - Black

Model # 3911D-BLK
LEAD TIME  usually ships within 1-2 weeks


Apply promo code MAILBOX10 in Shopping Cart for an additional 10% off (promo ends 11/30/22)

Volume Discounts

2 - 5$1,195.00
6 +$1,125.00
Contact Us for Bulk Pricing
32.25" W x 69.25" H x 19" D
80 lbs

More Information

Salsbury 3900 Series 4C Horizontal Mailbox Enclosures - Free-Standing


  • Constructed of heavy duty aluminum
  • Designed to mount Salsbury 3700 Series front loading 4C standard and custom horizontal mailboxes to the ground (mailboxes sold separately)
  • Ideal for colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications
  • For indoor or outdoor use
  • Feature a durable powder coated finish available in aluminum, bronze, gold and sandstone that match 4C horizontal mailboxes
  • Can accommodate each of the Salsbury 3700 Series horizontal mailbox heights
  • Available in configurations that are 1 door wide (single column) and 2 doors wide (double column)
  • 4C standard and custom horizontal mailboxes easily fit into the fully assembled enclosures with mounting hardware (included) and are ideal when space is limited
  • Salsbury Industries is an ISO 9001:2015 certified company and has excelled in the field of manufacturing since 1936



  • 4C Horizontal Mailbox Enclosure Video