111 x 235mm – Window ENV952.413

Twofold envelopes are compatible with all Twofold Folder Inserters and Franking Machines, to help reduce downtime associated with incompatible envelopes.

Our envelopes are ‘CheckSecure’ – with our unique printed opaque to prevent fraud for your mail containing financial or sensitive documents.

All envelope prices are per 1,000, enquire for the most competitive price and options for storage and call-off service.


We offer a wide selection of machine compatible, bespoke and self-seal envelopes in a range of sizes, window sizes and positions. You can take advantage of our FREE storage for up to 12 months, allowing you to make savings on larger orders and schedule call off when you need them through the year.

We deliver almost everywhere in the UK and in most cases can deliver next day if ordered before 1.30pm.

Additional information



Envelope Size

111mm x 235mm

Window Size

39mm x 93mm

Window Position

36mm up, 125mm from left hand side

Horizontal / Vertical Window




Outside Seams



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