Salsbury Industries Post-Mount Roadside Mailbox-4325BLK - The Home Depot
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Salsbury Industries

Model # 4325BLK

Internet # 202102879

Post-Mount Roadside Mailbox

Salsbury Industries Post-Mount Roadside Mailbox

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$125.00 / box


Model # 4325BLK

Internet # 202102879

The Salsbury Industries Post-Mount Roadside Mailbox features heavy-duty aluminum construction and comes pre-assembled for easy installation. This versatile mailbox can either be wall mounted or post mounted to suit your needs. This durable mailbox has a generous size to accommodate letters, magazines and packages, and the front- and rear-access doors lock to help prevent mail theft. Approved by the U.S. Postmaster General, this mailbox includes an outgoing mail tray for added convenience.

  • Generous size accommodates letters, magazines, packages and more
  • Dimensions of 12-1/2 in. W x 13-5/8 in. H x 18-1/4 in. D provide added space
  • Front- and rear-access doors lock to help prevent mail theft
  • Heavy-duty aluminum construction to withstand impact
  • Rust resistant for extended longevity and quality appearance
  • Pre-assembled for easy installation
  • Can be wall-mounted or post-mounted to suit your needs
  • Includes an outgoing mail tray, a lock with 2 keys on each door and an adjustable red signal flag
  • Approved by the U.S. postmaster general

Info & Guides

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Assembled Depth (in.) 
18.25 in 
Assembled Height (in.) 
13.625 in 
Assembled Width (in.) 
12.5 in 
Assembly Required 
Color Family 
Hardware Finish Family 
Letters/numbers included 
Mailbox Size 
Newspaper receptacle 
Outgoing mail indicator 
Rear access 
Single Box Type 
Post Mount 
Warranty / Certifications
Manufacturer Warranty 
Three (3) Year Limited 
U.S. Postmaster General approved 


Rated 4.4 out of 5 by 17 reviewers.
Rated 1.0 out of 5.0 by Not as secure as the sales pitch would have you believe Thieves can open this mailbox without a key about as fast as you do with a key. The tang on the locks bend easily. Saw a guy drive up, insert some kind of tool and pop open my mailbox (this design) and drive off - all in about 20 seconds. The rear access door may even be designed so that the rear lock's tang can be bent allowing acces should the locks fail. It looks good and has withstood lots of weather, but it'll only keep young vandals out. April 2, 2015
Rated 1.0 out of 5.0 by Don't use if security is an issue Mailbox looks great but didn't make it a week before being broken into. Gauge of metal is too thin for real security. Locked door was bent and mail stolen. November 12, 2014
Rated 5.0 out of 5.0 by Stands out on the street Well designed, stylish mailbox. Stands out on a street of conventional mailboxes. Took about a half hour to install, not counting digging up the old post. Make sure you use with the matching post ($100). I used non-mix Ready-Crete (pour in hole and add water). Only area of improvement would be the lock and key, which could be of higher quality. February 21, 2015
Rated 5.0 out of 5.0 by POST-MOUNT ROADSIDE MAILBOX Very Easy to install, took less than 30 minutes to put everything together. Been up 3 weeks.; had high wind (30 mph) that brought down a tree that demolished a neighbor's car and the mailbox is still standing. Guess time will tell...but so far, so good ! January 7, 2015
Rated 4.0 out of 5.0 by New security Mail box The mail box is very strong and sturdy, was easy to install, perfect size for small pakages.and large envelopes. April 28, 2015
Rated 3.0 out of 5.0 by nice mailbox This is a nicely built mailbox. It is very sturdy and not too large for the "street view". The only thing is the outgoing mail slot can easily be confused with the incoming. It is a shelf sitting above the opening where mail is delivered, We have already had mail delivered to the "outgoing" slot. My husband has blocked up the shelf. Hopefully this will do the trick. Putting outgoing mail on the street is not exactly secure anyway. May 24, 2012
Rated 5.0 out of 5.0 by Nice Bought the deluxe post with it. Very easy to install. Cemented the deluxe post of course. Very easy to attach. Good looking mailbox. March 14, 2015
Rated 5.0 out of 5.0 by Wonderful Product This mailbox is perfect....Sturdy construction....1st one I bought was hit by a car and taken out...because I cemented into ground only the post was bent and the mailbox was I replaced with same one...the only downfall of this is if you receive large parcels they will not fit into slot...and the delivery was very long because item came from California and I live in New Hampshire November 4, 2014
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