Use our commingled presort flat mail sorting to save money


Flat sorting includes these mail specifications:

  • Sizes from 6 1/8 by 11 ½ inches to 12 by 15 inches
  • From ¼ to ¾ inch thickness

Large envelopes and flat mail sorting offer many options to get your products and information out to customers.

Without the kind of help that Presort offers, it’s easy to get bogged down in details and end up spending far too much money on your flat mail sorting and large envelope mailings. We can help you determine when it makes sense to fold a mailing down to send as a letter and when response rates indicate you’d be better off mailing as a flat.

A Cost-Effective Solution with the Fastest Service

Presort has significant infrastructure in place that makes it far more cost-effective for us to pick up your flat items and include them with our commingled flat mail sorting. We’re a Detached Mailing Unit with tens of thousands of pre-approved flats, letters, and parcels going out every day – why not add your flat pieces to the flat mail sorting mix? You’ll get the best possible rates for your flat mail sorting and the fastest service without having to spend valuable man-hours on navigating postal regulations or standing in line.

On February 20, 1792 George Washington signed the Postal Service Act, making it illegal for postal officials to open anyone’s mail.