What is a lettershop?

A lettershop (or mail house) prepares printed pieces for the USPS: inserting, addressing, sorting, and induction. See our guide for a fuller definition.

Mail Inserting, Folding & Lettershop Services

High-volume mail inserting, folding, and lettershop services.

A lettershop, also called a mail house, turns printed components into finished USPS mail. The work includes inserting, matching, addressing, tabbing, sorting, and tray preparation. DIS Direct runs press and lettershop in one facility, which keeps complex and regulated mail on one accountable schedule.

Our Itasca lettershop handles inserting, inkjet addressing, tabbing, handwork, and tray preparation. Keeping that work next to the press gives complex packs one production schedule through USPS entry.

FlowMaster inserting line running direct mail at DIS Direct — A FlowMaster line inserts, matches, and prepares direct mail for USPS entry.

Lettershop capabilities

Whether the piece is a #10 letter pack, a 6×9, a self-mailer, or a multi-insert envelope, we match the finishing path to the format and the postage class.

FlowMaster inserting with read/write
Inkjet addressing, barcodes, and 2D codes
Tabbing, wafer sealing, folding, and gluing
Hand sorting and special projects when automation is not a fit

Mail house for trade partners

Many printers sell mail without running their own lettershop. We work as a confidential, white-label mail house for jobs that require inserting, matching, handwork, or detailed postal preparation.

Frequently asked

What is a lettershop?: A lettershop (or mail house) prepares printed pieces for the USPS: inserting, addressing, sorting, and induction. See our guide for a fuller definition.