Selecting an Envelope Size

Type	Name	Recommended Max Enclosure Size When Folded	Common Uses
		Varies according to thickness
Business
	#9	3.75" x 8.625" When folded	Return envelopes to be inserted into a # 10
	#10	4" x 9.25" When folded	Most common business and coresponce letter mail
	#10 Window	4" x 9.25" When folded	Return envelopes to be inserted into a # 11

Announcement
	A2	4.25" x 5.5" When folded	Small flat or folded Invite, Thank You, General or RSVP cards.
	A6	4.625" x 6.26 When folded	Small flat or folded Invite, Thank You, General or RSVP cards.
	A7	5.125" x 7" When folded	Flat or folded Greeting, Thank You or General cards, as well as outer envelopes for A2 and A6 cards and envelopes.

Booklet & Catalog
	6 x 9	5.75" x 8.75" When folded	Small booklets, promotional, larger flat or folded thicker items
	9 x 12	8.75" x 11.5" When folded	Small booklets, promotional, larger flat or folded thicker items
	10 x 13	9.75" x 12.5" When folded	Small booklets, promotional, larger flat or folded thicker items

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