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MB Sentinel Box Sentinel XL48 Front Loader Cabinet- Package Only

Save $2,529.00
Original price $9,699.00
Current price $7,170.00
SKU MBS0000407

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30 Day Returns*

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Product Description

This model offers great capacity for package deliveries and also works great for returns.


  • Offers twice the capacity of our standard parcel safe and still features our patented finger bottom design that lifts parcels up and out when the door is opened
  • Speed limiters assist the door when opening and closing
  • Works well for multiple deliveries
  • Keypad access controls offers top security and easy access
  • Interior cabinet light comes on when the door is opened
  • Solar power options available

Add Address Placards

Please clink link below if you wish to add Address Placards.

MB Sentinel Address Placards option


Cut Sheet:

Large Parcel Drop Box

Concrete Pad Spec:

Mailbox Sentinel XL48 Concrete Pad Spec

Designer & Architect Files


How do carriers know the code to open the box?

Simply enter your box code to your ship-to address line when placing orders online. You can also catalog your code with UPS and FedEx!

How large of a package will the box hold?

The box will hold a 26 x 18 x 16-inch package!

How do I find someone to install my box?

Good question, if you do not have someone to complete your install, feel free to give us a ring, and we will gladly work to locate a reputable contractor.

What is the box made of?

All aluminum and stainless steel, including the hardware.

Do you make a smaller architectural mailboxes?

We can build anything, feel free to give us a ring to discuss your custom mailbox order.

What keeps someone from taking my custom mail or parcel safe box?

For stand-alone outdoor placements, we recommend anchoring the box to a concrete pad.

Can anyone deliver packages to this box?

All carriers can deliver to our boxes, but we do recommend that you contact the postal supervisor of your delivery area. Postal supervisors are very receptive to all of our products.

What video doorbells work with your parcel safe boxes?

We actually designed the front faceplate of our boxes to accommodate video doorbells from Ring, Nest, and many others. Since our cabinet is made of aluminum, it makes for easy integration.

What are the standard colors that you offer?

We have 15 powder coat finishes to choose from, see page three of our price calculator. Also, custom colors are also available for an additional fee.

How long does it take to build a box from the time it’s ordered?

Each box is customized to your specifications, please allow 3-4 weeks for us to prepare your order.

How do you ship the boxes?

We use both national and regional LTL freight companies, feel free to call us if you want a quote.

How heavy are these architectural mail and parcel safe boxes?

Our boxes weigh from 165 -195 lbs depending on the model you choose.

Do you make wall inserts?

Yes we do, in both fully enclosed cabinets and single door wall hatch models.

What is the difference between a Mailbox Sentinel and a Box Sentinel?

All Mailbox Sentinels are full-service combination mail and parcel boxes, the Box Sentinel is a parcel only delivery box unless you select a Box Sentinel with a letter insert. The Box Sentinel with a letter slot does not have a space for outbound letter mail only for inbound.

Do you make secure free standing ballot boxes?

Yes, we actually do, and they can also have features added later once the election season is over.  You can make them work as sealed bid boxes, parcel delivery, and return boxes, or a combination letter and parcel box. They can always be converted back to a ballot box at any time by simply placing the ballot collection bracket, and ballot collection bag back in place.

What is the difference between your parcel safes and other drop boxes?

For starters, our finger bottom design makes getting the packages out very easy and the electronic access controller works great for returns. Since our parcel safe hinges at the bottom, it allows you to manage much larger packages with ease. Every aspect of our design is based on quality from top to bottom!

Are your boxes USPS certified?

We are not certified by the General Postmaster, but we do meet or exceed all standards and specifications when installed properly. We encourage you to call your local postmaster where in every case to date we have found great support and acceptance. Feel free to give us a ring as we’re here to help!

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.

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