C4 Envelopes (A4)

The UK standard dimensions of a C4 envelopes 229mm × 324mm, these will be capable of holding A4 sheets and are commonly know as the tradition size envelope for letters.

You will find a couple of variations offered including C4 self seal envelopes and C4 window envelopes that eliminates the need to spend more time and expenditure labeling the outside of the envelope with the addressee's details.

Each of our C4 window envelopes have a space cut in the front side that allows the paper inside to be observed. They are commonly organized so that the sending address printed on the page is visible, saving the sender from having to duplicate the address on the envelope itself. Windows are sealed with a transparent or clear film to protect the document inside.

Our security envelopes have a patterned style printed on the inside, which makes it difficult to see the contents. Many patterns exist.

Just because you save a considerable amount on our cheap C4 envelopes this certainly does not mean you are compromising on quality as we exclusively sell quality products that are tried and tested in our own personal office.


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