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MB Sentinel Dual Door Cabinet with Letter Slot Straight Sided for Fences and Columns - Combination Mail and Package Box

Save 11% Save 11%
Original price $3,605.00
Original price $3,605.00 - Original price $3,605.00
Original price $3,605.00
Current price $3,205.00
$3,205.00 - $3,205.00
Current price $3,205.00

For those that seldom mail a letter from their mailbox and only need an inbound letter mail and package delivery safe.


  • Letter slot chutes mail to a separate drawer located above the parcel compartment that is only accessible from the rear
  • Keypad controller secures the front door and works well for multiple deliveries
  • Patented finger bottom design offers easy delivery and retrieval access by lifting the heaviest packages up and out when either door is opened
  • Can receive up to 26”x18”x16” packages (85% of all packages shipped)
  • Interior cabinet light illuminates when either door is opened
  • Solar power option not recommended if to be completed with a masonry finish

Cut Sheet:

Concrete Pad Spec:

Box Sentinel Concrete Pad Spec

Designer & Architect Files

More than a delivery drop box. 

Just as every family is different, every home is different, too—yet most delivery drop boxes on the market don't fit more than 20% of Amazon package sizes and lack accessibility features.

Our team set out to solve this problem. As a result, we invented the optimal modern home delivery experience.

Our team builds each package safe to order with your specifications, from a standalone curbside box model to elegant wall and fence inserts, and models made for multifamily properties.

We have designed tried-and-true ergonomic features for accessibility and fit in many different spaces—because everyone has a right to live life safer with less worry.

Our most popular model, the Box Gobbler, can accommodate 94% of Amazon package sizes while upholding your family's right to privacy.

In a nutshell, our package safes are genius made simple.

Refund policy

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

Customer Reviews

Based on 8 reviews
no more stolen packages/mail

We got this because our old mailbox had been forced open and everything stolen. Watched a few videos regarding different mailboxes and saw one that showed our old mailbox being ripped open easily by hand! So we went for this heavy-duty model and it's been great. Easy installation, holds a ton of mail in case you are away for a few days and if this is not the most sturdy mailbox on the market, I'd be surprised. If you've been getting ripped off by some mail-stealing loser, get this box.

Chester and Mia
Highly recommend this product!

This is an outstanding product and worth every penny. It is not cheap - and that shows in the quality of the product. We installed it ourselves and it could not have been easier! Highly recommend this product!

great value

This product is a fantastic value. It is incredibly sturdy, is theft resistant, and holds a few weeks of mail without an issue. I highly recommend this mailbox.

Beth Harmon
great purchase

Best money spent to feel safe and secure.

Lindsay Price
no more stolen packages!

Wish I would have purchased sooner. Mailbox is way to install and best of all - NO MORE STOLEN PACKAGES!!!