In this envelope buying guide, you will not only be able to locate the envelope you are searching for but also gain information about the different types available. Our extensive assortment ranges from superior quality, high white envelopes to cost effective manila suitable for volume mailings. We aim to meet all your personal and professional mailing needs. You will find a selection of different weights, sizes, windows and materials designed to provide specific benefits like added protection or increased security.
Before choosing a specific envelope, consider the following questions:
It is essential to think about what and to whom you will be sending your mail. This will determine what kind of features you will need. Will your mailings be of high volume or high quality? Will it contain just a single sheet of paper or bulky documents such as catalogues or small items. The below categories show which envelopes are suitable for which needs.
• Fast & easy
• Cost effective & quality mailings
• Different degrees of whiteness
Expanding & Gusset Envelopes
• Expandable side seam
• For bulky documents
• Convenient for ecommerce
• Weatherproof protection
• Lightweighted & opaque
• Suitable for non fragile items
Padded & Protective Envelopes
• Ship safely & securely
• Protects delicate items
• Padded, bubble & hardback
• For all special purposes
• Non standard envelopes
• In all sizes and formats
• Suitable for many purposes
There are several standard envelope sizes designed to accommodate different A-sized sheets. Our range carries a few of the standard formats which, for example, match a full A4 sheet of paper. Below are images that demonstrate which paper size fits in which envelope and whether they need to be folded
However, some envelopes do not correspond to a particular fold. Below is a table of exact dimensions for each standard envelope format in millimetres.
|Standard Format||Dimensions (h x w)||Fits|
|B4||250 x 353||A4 paper unfolded|
|C3||324 x 458||A3 paper unfolded|
|C4||229 x 324||A4 paper unfolded|
|C5||162 x 229||A4 paper folded twice|
|C6||114 x 162||A4 paper folded into quarters|
|C6/C5 (DL+)||114 x 229||A4 paper folded into thirds|
|DL||110 x 220||A4 paper folded into thirds|
There are different sealing types used for various types of different applications. Office Depot carries the most common sealing types or, occasionally known as art of locks. There are three main closures.
Self-Seal Envelopes: An easy way to close your envelope is with a self-seal closure. With this method both flaps have a strip of latex that bonds together after pressing them firmly. The latex is derived from rubber and ammonium making this a natural seal. Furthermore, the latex on these self-seal envelopes have a guaranteed shelf life of at least 6 months from date of manufacture.
Peel & Seal Envelopes: The strongest seal to secure your envelope shut is with a peel and seal closure. With this method the top flap is covered by a release tape that can be peeled away and then pressed down to form an instant bond. The glue that is used on this envelope has a shelf life of up to 5 years.
Gummed Envelopes: Gummed envelopes need to be moistened in order to be closed. Gummed envelopes are the only seal type which are suitable for machine inserting where the sealing is performed automatically. The gum used on the flap is water soluble and made from a mixture of dextrin and synthetic resin making them biodegradable. If these envelopes are stored in moderate conditions where the temperature is not too hot or not too cold, these envelopes should last for a number of years.
Envelopes are offered in either a wallet or pocket style. A wallet style conveys the opening is on the long edge of the envelope whereas pocket envelopes have their openings on the short side.
In our range you will find both envelopes with windows and plain envelopes (without window). Windows in envelopes are mainly used to display name and address of the recipient on the form that is inside the envelope. If you are planning to buy an envelope with window the specifications can be quite confusing.
In order to choose the correct sized window envelope note that the measurements are always taken with the flap at the top. The first dimension taken is height followed by width (AxB). Then measure the distance from left hand side (C) and then up from the base (D).
At Office Depot, we carry a wide range of envelope weights which refer to the paper thickness. The most common standard weight is 80 or 90 gsm. This is a typical weight for all of your standard mailings. The paper weight of an envelope is measured in gram per square metres (g/m ² or gsm) and can be seen as a measurement of paper density, and thus an indicator of quality. This means, the lower the gsm, the thinner and lighter the envelope.
If you want to post single-sheeted papers with low costs and a high volume, you could decide to go for a paper weight lower than 80 gsm. These are often brown or manila envelopes and are a more environmentally-friendly option due to the reduced amount of paper use per envelope.
If you are planning to buy a more deluxe envelope then our standard envelope range of 100/110/120 gsm is more suitable for your needs. For very important documents which need more protection, anything above 130 gsm would be ideal, these are classified as either board backed or gusset envelopes.
Used for single sheet low cost & high volume mailings
Used for everyday standard & high volume mailings
Used for high quality & luxury mailings
Used for adding protection and security mailings
Our range consists of envelopes in various colours and tints so you can determine what connotations are attached to your mail.
White is the most popular colour in envelopes. It is offered in many different shades and formats to specifically meet your personal needs. It is ideal for sending business letters as it is the most neutral, simple, yet professional option to give your receiver the appropriate message.
Brown manila envelopes are also quite popular in our range. It is a darker colour and commonly used for either low cost mailings or filing and document keeping because of its less-transparent quality.
Coloured envelopes are used for less frequent usage such as marketing purposes, birthdays and invitations. Red, pink, green, orange, and blue are just a few of the many shades available.
Not only are our recycled envelopes the sole sustainable solution. Most of the envelopes in our assortment have at least one environmental claim. Below is a short description to give you a better understanding of what each of these entail.
Contains post-consumer and/or pre-consumer recycled content. Contains 100% recycled content (by weight).
Forest Stewardship Council - International certification mark that proves that the paper you are buying comes from well managed forests and verifies that they’re not mixed with products from uncertified forests at any point in the supply chain.
The Programme for the Endorsement of Forest Certification (PEFC) is an international non-profit, non-governmental organization dedicated to promoting Sustainable Forest Management (SFM) through independent third-party certification. It provides evidence that timber products originate from certified, well managed forests and verifies that they’re not mixed with products from uncertified forests at any point in the supply chain.
TCF & ECF
ECF (Elementary Chlorine Free) and TCF (Totally Chlorine Free). Indicating whether a product is manufactured from chlorine free paper and the paper is made from virgin fibre that is either unbleached or bleached without harmful derivatives.
❯ 65% of people give printed mail their full attention, compared with only 35% that said the same regarding emails
❯ 70% of people state receiving mail creates a better impression of the company in comparison to receiving email
❯ 70% of people feel more valued when receiving postal mail
❯ People value something 24% more when they can touch and feel it rather than just see it
❯ 7 out of 10 people prefer to receive legal or banking information in the form of a letter
❯ Almost 50% of people prefer to receive sales information via a letter or brochure, closely followed by email, cited by 42.8%. Less than 7% like to receive sales information face-to-face
❯ A majority (57%) say that receiving mail makes them feel more valued; only 17% feel the same about email
❯ Almost two thirds (63%) of consumers take mail more seriously than email
❯ Direct marketing campaigns that include mail are 27% more likely to deliver top-ranking sales performance, and 40% more likely to deliver top-ranking customer acquisition levels than campaigns without mail
❯ An average of 23% of all mail is shared between people in a household. 21% of promotions and special offers are shared
❯ Mail is kept in a household for an average of 17 days for advertising mail, 38 days for door drops and 45 days for bills and statements
❯ Printed mail grabs attention, is considered and informative, makes recipient feel valued and gives a better impression
❯ Compared with other media, mail recipients experiences higher levels of emotional engagement and remembered more
❯ Picking up a pen and paper can be therapeutic
❯ Consumers are more likely to deal with direct mail immediately compared to email