A-SIZE ENVELOPES – VISUAL GUIDE
Dimensions of A-SIZE Envelopes (size identified by inches and millimeters)
(insert must always be smaller than the envelope dimension)
- A1 Envelopes (inches 3.625 x 5.125) [millimeters 92.075 x 130.175]
- A2 Envelopes (inches 4.375 x 5.75) [millimeters 111.125 x 146.05]
- A6 Envelopes (inches 4.75 x 6.5) [millimeters 120.65 x 165.1]
- A7 Envelopes (inches 5.25 x 7.25) [millimeters 133.35 x 184.15]
- A8 Envelopes (inches 5.5 x 8.125) [millimeters 139.7 x 206.375]
- A9 Envelopes (inches 5.75 x 8.75) [millimeters 146.05 x 222.25]
- A10 Envelopes (inches 6 x 9.5) [millimeters 152.4 x 241.3]
Announcement envelopes are designed with side seam construction and contemporary square flap. This is a popular choice for social and professional mailings, stationery, photographs, greeting cards, small booklets, and much more. Interesting fact to know, A-Envelopes and Baronial Envelopes can share common sizes – example: 5-1/2 Bar is the same dimension as A2, the defining differences are the flaps and the seam construction. If these factors are not important to your project, then best to move forward with the envelope offering the possibilities of making your project a success.
You can learn more about other various envelope sizes by viewing our complete envelope size guide. Additionally we are explaining in more detail the various sizes and uses.
Learn more about A1 / 4BAR ENVELOPES
Over the years one comes across a product that seems to have many identifiers and can cause much confusion when trying to buy or discuss a purchasing need. Catalog and Booklet envelopes seem to fall within this class of confusing terms. Open end, open side, catalog, booklet, large envelopes… these are a few of the terms thrown around when looking at this larger constructed envelope. I suppose to cause even more confusion, technically these styles do not require ’large’ construction, they can start at somewhat smaller dimensions.
Catalog envelopes start at sizes 6×9, although if you include the scarf or coin envelope, it can be quite small sizes available. Booklet envelopes can start at dimensions close to 4×6 with many custom envelopes being converted with booklet styles – the dimensions vary with many options to purchase or convert.
Before proceeding further, it is best to identify the most common factors that classify the term catalog or booklet envelopes.
Catalog envelopes are open end, meaning shortest side has the flap, also center seam is the most common, yet catalogs are also converted with side seam construction. Either way, one seam instead of two.
Booklet envelopes are constructed with two side seams and open side, meaning longest side has the flap.
Both these products are found in varying colors, basis weights and gumming options. The most universal of both would be white wove and kraft with these being common amongst general mailings of catalogs, annual reports, journals and other popular inserts.
More explanation and sizes are explained within our individual listings or additional information pages on our site. Also stay current with other envelope sizes by viewing our envelope size chart or by shopping envelopes smaller to larger.
A1 Envelopes which are technically listed among Baronial Envelopes and properly named a 4-BAR Envelope. A1 is a common name but not technical. 4BAR is the industry name and we use A1 along side as to correspond to other A-SIZE envelopes offered on our site.
The dimensions of A1/4BAR envelopes is a North American standard amongst envelope converters. If you want a square flap, you would generally order as “4-Bar Square Flap” and if you need a pointed flap, this is specifically a 4-Bar Envelope. We at Paper-Papers use the term interchangeably since the dimensions are the same and the photo next to the products, along with the description, will describe the flap or envelope style.
This envelope is the smallest member of our Announcement Envelopes, many times referred to as Response Envelopes, 4Bar Envelopes or Wallet Envelopes. Noting this to be the smallest announcement envelope allowed by the Postal service, many designers choose this size as a popular option for “replies” (RSVP) of formal invites.
A1 & 4 BAR (same size) - Envelope Dimensions:
- Inches: 3.625 x 5.125 (3-5/8 x 5-1/8)
- CM: 9.2075 x 13.0175
- MM: 92.075 x 130.175
Enclosure choice is not as strict as the actual dimensions. Truly finalized by the designer, the enclosure simply needs to be dimensions smaller than the envelope itself. A general rule of thumb is allowing .25 inches in height and width. As many creative hearts already know, the bulkier the enclosure, the more room necessary to properly insert, close and seal. Listed below is suggested enclosure dimensions to assist toward a successful creation!
Suggested enclosure dimension:
- Inches: 3.375 x 4.875
- CM: 8.5725 x 12.3825
- MM: 85.725 x 123.825
View our hundreds of 4-Bar / A1 Envelope options or continue your research by reviewing a list of popular Envelopes and understanding their sizes.