Enhance your enclosures

Enclose your documents in professionally printed envelopes or add impact to your campaign using eye-catching enclosures from dazzling foils to eco-friendly recycled paper.

Envelopes can be printed in our full spectrum of colours both front and back, and in both standard sizes (see below) or bespoke.

Did you know that Whitehall Printing can provide a full mailing fulfilment service to manage your entire direct mail campaign?

Mailing Fulfilment

Envelope size guide

Known as the ISO C series, these are standard industry envelope sizes designed to accommodate standard ISO A size papers. This guide shows finished envelope sizes in millimeters.

C6 114 x 162Use with A6 (¼ A4)
DL 110 x 220Use with DL (1/3 A4)
C5 162 x 229Use with A5 (½ A4)
C4 229 x 324Use with A4
C3 324 x 458Use with A3

Available options:

  • C3, C4, C5, C6, DL or square sizes
  • Peel & seal, gummed & self-seal flaps
  • Pocket & wallets
  • Gusseted option for large enclosures
  • Full bleed print & convert service
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