An envelope is often the first thing your customer, guest or client sees. Whether you’re sending invoices, marketing materials, certificates or luxury wedding invitations, the right envelope can make a lasting first impression before it is even opened. In this guide, we’ll explain envelope sizes, styles, paper weights, sealing methods and luxury finishing options to help you choose the perfect envelope for your project.
What Size Envelope Do I Need?
Envelope sizes are designed to accommodate standard paper sizes, making it easier to select the correct option for your mailing.
| Envelope Size | Common Use |
| DL | A4 folded into thirds, letters, invoices and direct mail |
| C6 | Greetings cards, RSVP cards and invitations |
| C5 | A4 folded once or A5 documents |
| C4 | Full-size A4 documents without folding |
| Square | Luxury invitations, greeting cards and promotional mailings |
When selecting an envelope size, consider both the contents and postal requirements. A larger envelope may offer greater impact, but it can also increase postage costs.
What Is the Difference Between Wallet and Pocket Envelopes?
This is one of the most common questions people ask when ordering envelopes.
Wallet Envelopes
- Open on the long edge
- Ideal for business correspondence
- Compatible with many mailing machines
- Commonly used for invoices and direct mail
Pocket Envelopes
- Open on the short edge
- Popular for invitations and presentation packs
- Often used for premium stationery and luxury mailings
Which Envelope Weight Should I Choose?
Envelope weight is measured in gsm (grams per square metre).
80gsm – 90gsm
Ideal for everyday business correspondence, invoices and letters.
100gsm
Offers improved opacity and a more professional feel. Suitable for confidential documents.
110gsm – 120gsm
A premium choice for branded stationery and customer communications.
135gsm – 175gsm
Perfect for luxury invitations, event stationery, brochures and high-end marketing materials.
What Are the Different Types of Envelopes?
Window Envelopes
Feature a transparent panel that displays the recipient’s address, making them ideal for invoices and mail-merged campaigns.
Banker Envelopes
Recognisable by their traditional diamond flap, banker envelopes are commonly used for invitations, greeting cards and personal correspondence.
Gusset Envelopes
Designed with expandable sides to accommodate catalogues, reports and bulky documents.
Board-Backed Envelopes
Provide additional protection for certificates, photographs and important documents that must not bend in transit.
Padded Envelopes
Offer lightweight protection for samples, promotional items and fragile contents.
Security Envelopes
Feature internal security patterns that help protect confidential information.
Which Seal Is Best?
Gummed Seal
The traditional envelope closure that requires moisture to activate the adhesive.
Peel & Seal
A convenient and secure option that uses a removable strip to reveal the adhesive.
Self Seal
Fast and easy to use, particularly for office environments and smaller mailings.
String and Washer
A traditional reusable fastening often used for legal documents and presentation folders.
Wax Seals
Perfect for wedding invitations, luxury events and bespoke stationery where presentation matters.
Can Envelopes Be Printed, Foiled or Embossed?
Absolutely. At Dynamic Print, we specialise in transforming ordinary envelopes into memorable brand experiences.
Our envelopes can be personalised with:
- Hot foil blocking
- Blind embossing
- Debossing
- Digital printing
- Custom colours
- Bespoke sizes
Luxury finishes are particularly popular for wedding invitations, corporate events, certificates and premium direct mail campaigns.
Are Coloured Envelopes Better Than White?
Coloured envelopes can help your mailing stand out from the stack of standard white envelopes arriving through the letterbox.
Popular choices include:
- Black envelopes with gold foil
- Navy envelopes with silver foil
- Kraft recycled envelopes
- Colourplan envelopes from GF Smith
- Vellum envelopes for luxury wedding stationery
A distinctive envelope often encourages recipients to engage with the contents, making it an effective choice for marketing campaigns and special events.
Which Envelope Is Best for Wedding Invitations?
Luxury wedding invitations often use:
- Textured envelopes
- Colourplan envelopes
- Vellum envelopes
- Pocket envelopes
- Foil-blocked envelopes
- Embossed envelopes
- Wax-sealed envelopes
Combining premium paper with hot foiling or embossing creates a beautiful first impression and sets the tone for the event.
Why Choose Dynamic Print?
Dynamic Print specialises in luxury envelope printing using traditional techniques and authentic vintage presses.
We offer:
- Hot foil blocked envelopes
- Blind embossed envelopes
- Debossed envelopes
- Colourplan envelopes
- Vellum envelopes
- Recycled and sustainable envelopes
- Bespoke envelope printing
Whether you’re looking for premium business stationery, luxury wedding invitations or high-impact direct mail, we can help you find the perfect envelope solution.
Need Help Choosing the Right Envelope?
If you’re unsure which envelope size, paper weight or finish is right for your project, our team is happy to help.
Contact Dynamic Print today to discuss your requirements, request samples or receive expert advice on luxury printed envelopes, hot foiling and embossing.
