0 £0.00
products in your basketto quote Checkout
Ooops no items were found.
Try something else.
Ok
Loading…

Envelope Size Guide

Confused about envelope sizes? Well, keep reading to understand your C’s from your D’s… Check out our Envelope Size Guide in order of popularity to help you out with which envelopes are used for correspondence, sensitive documents, and more.

2 min
Envelope Size Guide

The envelope sizes that are getting the most attention

Envelopes continue to remain a popular stationery essential regardless of how fast the digital world progresses. The method of sending and receiving emails is more popular than ever nowadays. However, not all communication can be sent this way. Important documents, bills, cards and much more still need to be sent through the post office, and there are many of us who still prefer to communicate traditionally by using postal mail.

Confused about envelope sizes? Well, keep reading to understand your C’s from your D’s…

Check out our Envelope Size Guide in order of popularity to help you out with which envelopes are used for correspondence, sensitive documents, and more.

DL Envelope Size

DL envelope

The most popular size and considered a ‘letter envelope’ is ideal for everyday use. The DL envelope is 110 x 220mm, suitable for an A4 sheet folded twice or an A5 sheet folded once.

 

C4 Envelope Size

C4 envelope

 

A C4 size envelope is often referred to as an A4 envelope as a piece of unfolded A4 paper fits perfectly. A piece of A3 paper also fits folded in half. These envelopes measure 324mm by 229mm. As this is a larger size it means that they can’t always be posted using regular postage stamps and would be classed as a ‘large letter’, meaning you would usually need to take them into a post office to be weighed and sent.

 C5 Envelope Size

C5 envelope

 

Another popular choice is the C5 envelope, it measures 162 x 299mm and is designed for sending unfolded A5 documents or folded A4 documents. The C5 is classed as a ‘letter’ for postage, so a standard postage stamp can be used.

C6 Envelope Size

 

The C6 size envelope is slightly taller but not as wide as the DL envelope. Measuring 114mm by 162mm in size it’s suitable for unfolded A6 or folded A5 documents, and A4 folded into quarters. As above, this type of envelope can usually be posted using a regular stamp.

C7 Envelope Size

 

The C7 is one of the least popular sizes of an envelope. Measuring approximately 83mm by 112mm, this envelope can fit a piece of A5 or A7 paper folded into four. The C7 small envelopes are generally used for RSVP cards or invitations. This small size envelope should only need a regular postage stamp.

C3 Envelope Size

C3 envelope size

The C3 envelope is designed for the larger A3 document. A standard C3 envelope measures approximately 324mm x 450mm which is ideal to enclose a piece of unfolded A3 paper perfectly.

Some of the less popular sizes of envelopes are:

Internal envelopeJiffy bags

  • C8 57mm x 81mm - An A8 piece of unfolded paper will fit into a C8 envelope
  • C9 40mm x 57mm - An unfolded piece of A9 paper will fit into a C9 envelope
  • C10 28mm x 40mm - An A10 piece of unfolded paper will fit into a C10 envelope

 

Aston & James can provide you with all your envelope requirements.

Latest Posts

10 Office Recycling Ideas

Be a Go-Green Hero with these tips

3 min

Boost Your Workspace

Are you looking for fresh ideas on how to make your desk space more productive and appealing? Well, look no further… how about making it sensory-friendly? Most of us wouldn’t put this at the top of our list of must-haves and have ignored our senses when setting up our workstations or workspace. There are eight senses to pay attention to that can improve your workspace, increase your love of it and improve your productivity while working.

4 min

How To Adapt Your Business for Hybrid Working

The recent pandemic has increased employee demand for flexible working practices, although hybrid working isn't feasible for all businesses, many management teams who can support the scheme remain sceptical about the arrangements of the hybrid option.

1 min

What are the benefits of a standing desk?

A standing desk not only allows you to stand while you're working, but you also have the option to sit down on a high stool or lower the desktop and use a chair. There are two main reasons for looking at a sit-stand desk solution. Uncover them in this blog...

2 min

Twin Town Challenge 2022

Aston & James are delighted to be taking part in Twin Town Challenge 2020+2, raising funds for the fantastic charity SpecialEffect, which helps to transform the lives of physically disabled people right across the world through the innovative use of technology.

Envelope Size Guide

Confused about envelope sizes? Well, keep reading to understand your C’s from your D’s… Check out our Envelope Size Guide in order of popularity to help you out with which envelopes are used for correspondence, sensitive documents, and more.

2 min
Envelope Size Guide

The envelope sizes that are getting the most attention

Envelopes continue to remain a popular stationery essential regardless of how fast the digital world progresses. The method of sending and receiving emails is more popular than ever nowadays. However, not all communication can be sent this way. Important documents, bills, cards and much more still need to be sent through the post office, and there are many of us who still prefer to communicate traditionally by using postal mail.

Confused about envelope sizes? Well, keep reading to understand your C’s from your D’s…

Check out our Envelope Size Guide in order of popularity to help you out with which envelopes are used for correspondence, sensitive documents, and more.

DL Envelope Size

DL envelope

The most popular size and considered a ‘letter envelope’ is ideal for everyday use. The DL envelope is 110 x 220mm, suitable for an A4 sheet folded twice or an A5 sheet folded once.

 

C4 Envelope Size

C4 envelope

 

A C4 size envelope is often referred to as an A4 envelope as a piece of unfolded A4 paper fits perfectly. A piece of A3 paper also fits folded in half. These envelopes measure 324mm by 229mm. As this is a larger size it means that they can’t always be posted using regular postage stamps and would be classed as a ‘large letter’, meaning you would usually need to take them into a post office to be weighed and sent.

 C5 Envelope Size

C5 envelope

 

Another popular choice is the C5 envelope, it measures 162 x 299mm and is designed for sending unfolded A5 documents or folded A4 documents. The C5 is classed as a ‘letter’ for postage, so a standard postage stamp can be used.

C6 Envelope Size

 

The C6 size envelope is slightly taller but not as wide as the DL envelope. Measuring 114mm by 162mm in size it’s suitable for unfolded A6 or folded A5 documents, and A4 folded into quarters. As above, this type of envelope can usually be posted using a regular stamp.

C7 Envelope Size

 

The C7 is one of the least popular sizes of an envelope. Measuring approximately 83mm by 112mm, this envelope can fit a piece of A5 or A7 paper folded into four. The C7 small envelopes are generally used for RSVP cards or invitations. This small size envelope should only need a regular postage stamp.

C3 Envelope Size

C3 envelope size

The C3 envelope is designed for the larger A3 document. A standard C3 envelope measures approximately 324mm x 450mm which is ideal to enclose a piece of unfolded A3 paper perfectly.

Some of the less popular sizes of envelopes are:

Internal envelopeJiffy bags

  • C8 57mm x 81mm - An A8 piece of unfolded paper will fit into a C8 envelope
  • C9 40mm x 57mm - An unfolded piece of A9 paper will fit into a C9 envelope
  • C10 28mm x 40mm - An A10 piece of unfolded paper will fit into a C10 envelope

 

Aston & James can provide you with all your envelope requirements.

Latest Posts

10 Office Recycling Ideas

Be a Go-Green Hero with these tips

3 min

Boost Your Workspace

Are you looking for fresh ideas on how to make your desk space more productive and appealing? Well, look no further… how about making it sensory-friendly? Most of us wouldn’t put this at the top of our list of must-haves and have ignored our senses when setting up our workstations or workspace. There are eight senses to pay attention to that can improve your workspace, increase your love of it and improve your productivity while working.

4 min

How To Adapt Your Business for Hybrid Working

The recent pandemic has increased employee demand for flexible working practices, although hybrid working isn't feasible for all businesses, many management teams who can support the scheme remain sceptical about the arrangements of the hybrid option.

1 min

What are the benefits of a standing desk?

A standing desk not only allows you to stand while you're working, but you also have the option to sit down on a high stool or lower the desktop and use a chair. There are two main reasons for looking at a sit-stand desk solution. Uncover them in this blog...

2 min

Twin Town Challenge 2022

Aston & James are delighted to be taking part in Twin Town Challenge 2020+2, raising funds for the fantastic charity SpecialEffect, which helps to transform the lives of physically disabled people right across the world through the innovative use of technology.

SEARCH ×