Model # RSKB0000

Internet #100050674

Store SO SKU #1000670192

Gibraltar Mailboxes Large Lockable Post-Mount Mailbox, Black

Gibraltar Mailboxes

Large Lockable Post-Mount Mailbox, Black

  • Extra wide mail slot ensures deliveries will be accommodated
  • Constructed for long lasting curb appeal
  • Locking door is concealed inside to deter mail from being stolen
$6963 /each
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Frequently Bought Together

Product Overview

Keep your mail safe, protect your identity with the Mail Safe Lockable Post Mount Mailbox. This USPS approved curbside locking post mount mailbox is constructed from steel and high impact polymer for extra security. A concealed locking access door keeps correspondence from being lost or stolen and accommodates incoming and outgoing mail. The extra wide mail slot exceeds postal regulations and accommodates a variety of mail. It fits most mailbox posts, including the Arlington Premium Aluminum Post. The post is sold separately.

  • Large capacity offers generous space for your deliveries
  • Features a concealed locking access door, to prevent mail theft
  • Extra wide mail slot allows for easy incoming mail delivery
  • Durable plastic construction is rust-proof
  • Mailbox is fully assembled for quick installation
  • Mounting bracket and hardware sold separately
  • Approved by the United States postal service postmaster general
  • Match with any Gibraltar mailbox post with the designation letter code C

Info & Guides

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Assembled Depth (in.)
21.62 in
Assembled Height (in.)
9.53 in
Assembled Width (in.)
13 in


Access Type
Front Only
Assembly Required
Color Family
Corrosion Resistant,Fade Resistant,Outgoing Mail Indicator
Hardware Finish Family
Mailbox Capacity (cu. in.)
Mailbox Size
Mailbox Style
Mount Type
Post Mount
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
90 Day Limited
U.S. Postmaster General Approved

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Customer Questions & Answers

So the outgoing mail is not secure?

Asked by: goldenlover
We haven't had any mail stolen, but I would not use any mailbox for outgoing mail.
Answered by: LeakyMailbox
Date published: 2017-02-14

Can we get replacement keys to an existing box? Lost originals.

Asked by: Rickle
Thank you for your inquiry. In order to assist you in the best way possible, we need more information. Please contact our customer service at 1-800-647-7063 so that we can help in answering your question. We look forward to hearing from you.
Answered by: Gibraltar support
Date published: 2017-07-31

Can the lock can be. Put on the back ,so we no need to go other side to open?

Can the lock can be. Put on the back ,so we no need to go other side to open?
Asked by: Marcos
No. The locking door is only from the front and cannot be moved.
Answered by: Alex
Date published: 2017-03-07

Replacement Handle

I have the RSKB0000 mailbox in black. The handle to open the front door broke. I followed your instructions in your answer to another question. I do not see RSK on the replacement part order form you directed us to on your website. How do I get this part?
Asked by: Christine
Thank you Dawn! I did yesterday and the woman who helped me was so kind and so helpful. Thank you!!
Answered by: Christine
Date published: 2016-01-08
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Customer Reviews

Large Lockable Post-Mount Mailbox, Black is rated 3.7 out of 5 by 28.
Rated 5 out of 5 by from Easy to install. Works like it should. Looks very nice.... Easy to install. Works like it should. Looks very nice.
Date published: 2017-05-09
Rated 5 out of 5 by from Easy to install! Exactly what we wanted. ... Easy to install! Exactly what we wanted.
Date published: 2017-04-04
Rated 3 out of 5 by from Good tool to fight ID theft I bought the white version of this mailbox after hearing about someone going through the neighborhood taking mail from each box as they went. I decided on this box because it has a wide opening that can accept large envelopes and small packages. It has been a good box except for the plastic top that started to turn yellow after about a year. Now the box is kind of two toned. The lock door hinge is mounted on a plastic piece so someone could rip it open if they really wanted to. But at least I would know about it and they wouldn't be very inconspicuous. At $80 it seems kid of pricey, especially with so much plastic. If it was all metal I would have been more pleased with it.
Date published: 2008-01-14
Rated 3 out of 5 by from This is the exact replacement of our old mailbox, which matches our neighbor's mailbox mounted ne... This is the exact replacement of our old mailbox, which matches our neighbor's mailbox mounted next to ours. The problem with the mailbox after several years is that moisture remains within the box in rainy season. Our neighbor has the same problem with his mailbox. The width of the rear bottom in the back 3-6 inches of mailbox depth remains moist. It has a drain hole near the bottom center, but it needs another drain hole in the rear and better overall sealing as well. Ink used in printing important mailed documents gets smeared, and mail is unreadable.
Date published: 2017-02-14
Rated 2 out of 5 by from Nice looking--but it has issues I bought this mailbox in white seven years ago but, as another reviewer wrote, (1) the top turned yellow quickly. (2) My mail lady does not like the lock feature as it was difficult for her to put the mail in the slot so I was never able to use that feature. (3) Wasp decided this is the perfect place to live, and it has been an ongoing battle trying to keep them out! (4) To add insult to injury, the door hinge broke through the plastic so now the door flops open because (5) the magnet catch broke during the first year,. I've replaced it several times but l I can't fix it anymore. Now I'm looking again for another mailbox which hopefully will keep out wasps.
Date published: 2013-10-23
Rated 1 out of 5 by from Don't waste your money! This mailbox sounded like a good idea - everyone wants to protect themselves from identity theft. I give this product only one star (would have given it zero stars if I could have) because it can still be easily broken into. Ours was smashed through the top. The top is plastic and someone was able to break into it by whacking it from the top. Don't waste your money on this product - instead, look for one that locks AND is solid metal.
Date published: 2010-03-22
Rated 4 out of 5 by from It's Worth the Money We moved into a new house in January that already had a mailbox ready for us to use. It wasn't anything special and did not have any type of lock on it. One day I decided to put outgoing mail in the box, and later that day found it on the road 5 miles away. Someone had gotten into the mailboxes around the neighborhood and stole all the mail that they could find. That's when I went to Home and saw this mailbox for sale. I thought that it was kind of expensive but it had a lock so I thought I would try it. I've had the new mailbox for a couple months now and haven't had any problems and love the all the mail that it can hold. The only reason I gave the box 4 stars is because it took almost 2 weeks to get delivered. If I would have known that I would have just went to my nearest Home Depot store and bought it.
Date published: 2006-05-12
Rated 1 out of 5 by from Not a Best Buy Three inherent (or intentionally inherent) design flaws: 1. Holes in the back which will wet your mail when it rains heavily. 2. Smaller hands can easily retrieve your mail thru the slot. 3. On mine, the hinge stop was designed to break. Yes, designed. Where there should have been be a doubler reinforcement, they cut it away, so the plastic structure only lasted a few years.
Date published: 2013-10-25
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