A custom mailing envelope is a printed paper envelope, cut and folded to your size, that carries your branding on the outside and your contents safely through the post. The Best Price Boxes prints them to your artwork with no minimum order, and the price-beat guarantee applies to any written quote you bring for matching specs.
Pick the size from the contents
Envelope sizing is simple if you work from the thing inside. A #10 envelope, 4 1/8 by 9 1/2 inches, takes a letter folded in thirds. An A7 envelope, 5 1/4 by 7 1/4 inches, takes a five by seven card or invitation. A 9 by 12 inch envelope takes a flat letter-size sheet, a brochure or a thin folder. Measure the contents, then add about a quarter inch of clearance in each direction so the item slides in without catching.
Check the postal side before you finalize. Size, thickness and aspect ratio can change how a piece is handled and charged, so confirm the rules with your carrier if you mail in volume.
Stock, print and finish
Envelopes are commonly made from paper in the 24 to 28 lb bond range, which suits letters and cards. Heavier stock feels more substantial but can be harder to fold and seal. Coated stock shows crisp colour; uncoated stock takes handwriting and stamps better and has a softer look. Print options are one-colour for a simple return address and logo, or full-colour for a wrap-around design. A printed pattern on the inside of the envelope, visible when it is opened, is a small detail that people tend to remember.
- Standard sizes such as #10, A7, 9 by 12 and custom dimensions
- Paper stock to suit letters, cards or light brochures
- Front, back and inside printing
- Logo and return address, or full-colour design
- Window or solid face, depending on your use
When an envelope is the wrong container
A paper envelope is not protection. It will not hold a stiff product flat, and a bulky item will split a seam. If the contents are rigid, such as a card with a gift attached or a stack of cards, a corrugated mailer box is the safer choice. If you need to send several documents together, a printed presentation folder holds them in order inside the envelope.
For campaigns, an envelope often travels with a matching piece: custom postcards or letterhead. Browse the whole presentation and print range if you want a set.
Thinking about the whole mail piece
An envelope has three jobs: get opened, hold what is inside and arrive intact. Many senders pay attention to the first and forget the other two. Print the return address clearly, leave a clean area for the delivery address and postage, and keep dark ink away from where a barcode will be applied. We mark those zones on the layout so your artwork does not run into them.
Colour matching is worth a word. Large solid areas of a brand colour on an envelope can show slight variation across a run, particularly on uncoated stock, which absorbs ink. If a colour must be exact, ask for a Pantone match and tell us which stock you prefer, so we can advise whether a coated sheet will hold the shade more reliably.
Next step
Send the size of what goes inside, how many pieces, and your artwork. We prepare the layout and quote it.
Frequently asked questions
Is there a minimum order for mailing envelopes?
No. There is no minimum order. You can order a small number of envelopes for a single mailing or a larger run for ongoing correspondence, and the dieline stays on file for reorders.
What size mailing envelope do I need?
Measure what goes inside and add about a quarter inch each way. A #10 takes a letter folded in thirds, an A7 takes a five by seven card, and a 9 by 12 inch takes flat letter-size sheets.
What paper are custom envelopes made from?
Most are in the 24 to 28 lb bond range, which suits letters and cards. Coated stock gives sharper colour and uncoated stock takes handwriting well. Tell us the contents and we suggest a stock.
Can I print inside the envelope?
Yes. Front, back and inside printing are all possible. An inside pattern is visible only when the envelope is opened, which makes it a good detail for invitations and premium mailings.
Can I print a full-colour design on the envelope?
Yes. You can print a simple one-colour logo and return address, or a full-colour wrap design. We keep the address and postage areas clear on the layout so the artwork does not interfere.
Is a paper envelope strong enough for my product?
It depends. Paper envelopes suit flat documents, cards and light brochures. For rigid or bulky items, a corrugated mailer box is a safer choice, because an envelope seam can split under pressure.
More Custom Presentation Folders
See the full Custom Presentation Folders range, or explore related options with no minimum order and our best-price guarantee:
