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All 36-inch Wide Mail Sorters (CLOSED BACK)

Shop 36" Closed Back Steel Mail Sorters

Our 36-inch wide countertop mail slots are the perfect shelving option for companies and independent workers needing sorting solutions. Made from steel, our metal organizers are constructed to last you a long time. Shop online today.


Product details:

  • Mail sorters are formed and welded all-steel construction
  • Each mail sorter shelf is adjustable by ½” increments
  • Sorters are available in grey or putty finish
  • Most sorters are available in either 12 ¾” or 15 ¾” (legal size) mail sorter depth (there is an upcharge for the 15 ¾” sorter depth)
  • These solid steel mail sorters are perfect for production mail centers or for the office environment
  • Mail sorters feature two different individual shelf widths - 9 ½” or 11 ½”
  • A ½” shelf identification lip is located on the front edge of each shelf for easy labeling
  • Unlimited combinations of these mail sorters and our large collection of mailroom tables can create the most efficient layout for any mail center.
  • The exclusive modular design is an all welded construction sorter shell that interlocks as you stack them, giving you more individual component options when your mail center changes or expands.
  • Combine with our adjustable height tables and mail carts for an efficient mail operation.
  • Shelves and sorters are finished with baked on enamel, powder coated and formulated for chip and corrosion resistance.
  • Don't forget to order removable shelf labels for your new mail sorter! Available in 3" long x 1/2" high size (box of 25). See product number L22 at the bottom of this page.
  • Do you need additional or replacement shelves, vertical shelf supports, pocket bins or other accessories for your mail sorter? Just follow this link to our convenient sorter accessory page.
  • The Mail Sorters shown on this page are not manufactured to be hung on a wall - they must be fully supported underneath either by resting on a table top, shelf, placed on the floor, etc. Mail Sorters may optionally be fastened to the wall through the back of the unit at the customer's discretion for added stability.
  • Multi-tier Mail Sorter "shells" nest on top of each other, so it is not required to bolt them together. However, small bolt holes are pre-cut into the top and bottom of each Mail Sorter shell at all four corners, so the customer may fasten them together using small nuts and bolts (not included) for added strength and stability if the customer so desires.

Mail Sorters Video

Home Countertop Mail OrganizerHome Countertop Organizers for Office Mail Rooms


If you work from home, run a business or lead a demanding hobby, having a coutnertop organizer shelf in your office will only help. Your ability to stay organized is key whenever you're filing paperwork or keeping track of important documents. Our countertop mail sorters are great for a number of spaces, such as:

  • Classrooms
  • Offices
  • Mailrooms
  • Art Studios

We're not the denim industry - our products are engineered to last years and even longer when taken care of properly. From working with crafts to providing accounting services on a seasonal basis, our home countertop mail organizers are your best choice!

Several Slot Options for the Best Organization in the Office

Mail delivery is all about ease. After ordering your countertop mail sorter, you never want to to think about shopping for an organizer again. Steel is a durable material, guaranteeing you won't be back to US Mail Supply for years. Our closed back countertop steel mail sorters are exactly what you're looking for. Contact us today to place your order or request more information!

Take a look at our entire stock of closed back steel mail sorters for sale!
Make sure to choose the RIGHT mailbox.

Don't worry, we can help you figure out what's best and most cost efficient for your space. A representative at U.S. Mail Supply will help you figure out what is required for USPS or private delivery, the number of units you need and any information required for installation.