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Envelope Basics

Much like any industry, the world of envelopes has a language of its own. Drew & Rogers has all the information you need to make sense of envelope terminology and find the products you're looking for. Let's start with a basic understanding of the envelope and its parts:

envelopes parts diagram

A. Width of Seal F. Side Flap
B. Seal Flap Length G. Side Fold
C. Top Fold H. Seam Overlap
D. Shoulder I. Bottom Flap
E. Throat J. Bottom Fold

envelopes back

envelope face

A standard diagonal seam envelope like this one is the most common style of envelope. Regardless of its size or variations, an envelope has the same basic parts: corners, flaps, folds, shoulders, throat, seal and seams.

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