Document Folding

Getting Started

This guide explains how LetterStream folds and inserts documents into envelopes, including folding types, nesting and subsetting processes, and how page order is maintained. It also covers when flat envelopes may be used to avoid folding altogether.

Folding Types

#10 Envelope: Documents are folded in one of two ways:

Flat Envelopes: Used for larger mailings; documents are not folded.

Nesting Methods

Nesting refers to how documents are grouped and folded together before being inserted into an envelope:

Typically, up to 3 pages are nested (grouped together and then folded).
For documents with more than 3 pages, nesting occurs in subsets to optimize machine handling and insertion.

Subsetting Details

Subsetting helps manage large documents efficiently:

Each subset is folded and inserted into the envelope.
Subsetting is determined automatically based on current production capabilities.
Customers cannot specify subsetting preferences.
Example: A 10-page document might be broken into sets of 4, 4, and 2 pages.

Page Order and Insert Sequence

Documents are inserted in the exact order displayed on the inserts page using the drag-and-drop tool.
Insert folding, nesting, and subsetting are determined by LetterStream in order to efficiently add all necessary inserts.
Envelope inserts (e.g., return envelopes) are always inserted last, regardless of where placed in the preview.

Using Flat Envelopes

You can select flat envelopes for any mailing:

Suitable for 1 to 75 sheets.
Documents are inserted in the specified order, unfolded.

Custom Folding Options

If you require specific folding or nesting instructions:

Custom requests may be accommodated for an additional charge of $0.20 per sheet.
Contact LetterStream to discuss custom folding needs.