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Square Envelopes

300x300mm White All Board Envelopes
From £0.53excl. VAT£0.64 incl. VAT
AB8-RIP
260x260mm White All Board Envelopes
From £0.46excl. VAT£0.55 incl. VAT
AB6-RIP
White 249mm Square Premium Peel and Seal Envelopes 180gsm
From £0.50excl. VAT£0.60 incl. VAT
PLS249249W
249x249mm White All Board Envelopes
From £0.41excl. VAT£0.49 incl. VAT
AB4-PIP-RIP
White 240mm Square Peel and Seal Envelopes 120gsm
From £0.29excl. VAT£0.35 incl. VAT
C03240PS
White 240mm Square Premium Peel and Seal Envelopes 180gsm
From £0.47excl. VAT£0.57 incl. VAT
PLS240240W
230mm X 230mm Black Paper Bubble Bag Peel & Seal
From £0.74excl. VAT£0.89 incl. VAT
CP230B
White 220mm Square Envelopes 100gsm
From £0.26excl. VAT£0.31 incl. VAT
430
220x220mm White Square Self Seal Inside Seams 100gsm Opaque Envelopes
From £0.19excl. VAT£0.23 incl. VAT
435
220x220mm Black Square Peel & Seal 120gsm Envelopes
From £0.35excl. VAT£0.41 incl. VAT
AN37220PS
220x220mm Square Clear Translucent Peel & Seal Plain 92gsm Cl Envelopes
From £2.02excl. VAT£2.43 incl. VAT
B8220
White 220mm Square Peel and Seal Envelopes 120gsm
From £0.23excl. VAT£0.28 incl. VAT
C03220PS
220x220 White Square Peel & Seal Plain 230gsm Wove Envelopes
From £0.46excl. VAT£0.56 incl. VAT
PMS6
White 220mm Square Premium Peel and Seal Envelopes 180gsm
From £0.38excl. VAT£0.46 incl. VAT
PLS220220W
Black 220mm Square Premium Peel and Seal Envelopes 180gsm
From £0.46excl. VAT£0.55 incl. VAT
PLS220220B
White 220mm Square Premium Window Peel and Seal Envelopes 180gsm
From £0.44excl. VAT£0.53 incl. VAT
PLS220220W-W
220x220mm White All Board Envelopes
From £0.36excl. VAT£0.43 incl. VAT
AB4-RIP
Bright Red 220mm Square Peel and Seal Envelopes 120gsm
From £0.28excl. VAT£0.33 incl. VAT
LC220BR
Magnolia 220mm Square Peel and Seal Envelopes 120gsm
From £0.28excl. VAT£0.33 incl. VAT
LC220MA
Orange 220mm Square Peel and Seal Envelopes 120gsm
From £0.30excl. VAT£0.36 incl. VAT
LC220OR
Mid Yellow 220mm Square Peel and Seal Envelopes 120gsm
From £0.28excl. VAT£0.33 incl. VAT
LC220MY
Bright Blue 220mm Square Peel and Seal Envelopes 120gsm
From £0.28excl. VAT£0.33 incl. VAT
LC220BB
Dark Green 220mm Square Peel and Seal Envelopes 120gsm
From £0.30excl. VAT£0.36 incl. VAT
LC220DG
Save 30%
Cream 213mm Square Envelopes 100gsm
Box Price
£18.34 per 500
From £0.16excl. VAT£0.20 incl. VAT
J09213
White 200mm Square Peel and Seal Envelopes 120gsm
From £0.21excl. VAT£0.25 incl. VAT
C03200PS
195x195mm White All Board Envelopes
From £0.33excl. VAT£0.39 incl. VAT
AB3-RIP
White 190mm Square Premium Peel and Seal Envelopes 180gsm
From £0.31excl. VAT£0.38 incl. VAT
PLS190190W
Save 30%
Ivory 190mm Square Envelopes 100gsm
From £0.16excl. VAT£0.20 incl. VAT
S18190
White 185mm Square Peel and Seal Envelopes 120gsm
From £0.17excl. VAT£0.20 incl. VAT
C03185PS
Save 30%
180x180mm Ivory Square Gummed Plain 100gsm Wove Envelopes
From £0.16excl. VAT£0.19 incl. VAT
S18180
White 175mm Square Envelopes 120gsm
From £0.17excl. VAT£0.20 incl. VAT
C03175175
175x175mm White Linen Square 170gsm Tuck Flap Envelopes
From £0.46excl. VAT£0.55 incl. VAT
AS15081
Save 20%
175x175mm Pale Yellow Linen Square 170gsm Tuck Flap Envelopes
From £0.37excl. VAT£0.44 incl. VAT
AS15082
175x175mm Oyster Pearlescent Square 170gsm Tuck Flap Envelopes
From £0.46excl. VAT£0.55 incl. VAT
AS15083
175x175mm Champange Pearlescent Square 170gsm Tuck Flap Envelopes
From £0.46excl. VAT£0.55 incl. VAT
AS15084
Save 30%
175x175mm Dark Blue Pearlescent Square 170gsm Tuck Flap Envelopes
From £0.32excl. VAT£0.39 incl. VAT
AS15085
175x175mm Pink Pearlescent Square 170gsm Tuck Flap Envelopes
From £0.46excl. VAT£0.55 incl. VAT
AS15086
White 170mm Square Envelopes 120gsm
From £0.16excl. VAT£0.19 incl. VAT
C03170170
White 170mm Square Peel and Seal Envelopes 120gsm
From £0.16excl. VAT£0.19 incl. VAT
C03170PS
170x170mm Black Square Peel & Seal 120gsm Envelopes
From £0.21excl. VAT£0.26 incl. VAT
AN37170PS
170x170mm Silver Pearlescent Peel & Seal 120gsm  Envelopes
From £0.32excl. VAT£0.38 incl. VAT
PM40-01170
170x170mm Medium Taupe Pearlescent Peel & Seal 120gsm  Envelopes
From £0.32excl. VAT£0.38 incl. VAT
PM40-10170
170x170mm Lime Pearlescent Peel & Seal 120gsm  Envelopes
From £0.32excl. VAT£0.38 incl. VAT
PM40-11170
170x170mm Aubergine Pearlescent Peel & Seal 120gsm  Envelopes
From £0.32excl. VAT£0.38 incl. VAT
PM40-21170
170x170mm Bronze Pearlescent Peel & Seal 120gsm  Envelopes
From £0.32excl. VAT£0.38 incl. VAT
PM40-24170
Save 25%
170x170mm Slate Pearlescent Peel & Seal 120gsm  Envelopes
From £0.24excl. VAT£0.29 incl. VAT
PM40-25170
170x170mm Baby Pink Pearlescent Peel & Seal 120gsm  Envelopes
From £0.32excl. VAT£0.38 incl. VAT
PM40-28170

Square Envelopes for Cards, Invitations and Special Occasions

Our range of square envelopes is perfect for greeting cards, wedding invitations, save the date cards, thank you cards and premium stationery. Available in a wide variety of sizes, colours and finishes, square envelopes provide a stylish alternative to traditional rectangular envelopes and help your cards and invitations stand out.

Whether you're looking for classic white square envelopes, vibrant coloured envelopes, luxurious pearlescent finishes or premium lined envelopes, you'll find a wide selection suitable for both personal and business use.

Available Square Envelope Sizes

We stock square envelopes in a variety of popular sizes to suit greetings cards, invitations, announcements and marketing materials. From small square envelopes for RSVP cards through to larger sizes for luxury invitations and greetings cards, there is a size to suit every project.

  • Small square envelopes
  • Square invitation envelopes
  • Square greetings card envelopes
  • Large square envelopes
  • Premium square envelopes
  • Square envelopes for stationery sets

Choose the Right Square Envelope

White Square Envelopes

A versatile choice for invitations, greetings cards, business stationery and everyday correspondence.

Coloured Square Envelopes

Ideal for weddings, events, creative projects and eye-catching mailings that need to make an impression.

Premium & Pearlescent Envelopes

Perfect for luxury invitations, special occasions and high-end stationery where presentation matters.

Popular Uses for Square Envelopes

  • Wedding invitations
  • Save the date cards
  • RSVP cards
  • Birthday invitations
  • Greeting cards
  • Thank you cards
  • Luxury stationery
  • Creative marketing mailings

Square envelopes are particularly popular for invitation and card designs because their proportions create a more premium appearance compared with standard envelope formats.

Square Envelope FAQs

Square envelopes are commonly used for greeting cards, wedding invitations, save the date cards, thank you cards and premium stationery.

Yes. Square envelopes are one of the most popular choices for wedding invitations, save the date cards and RSVP cards thanks to their elegant appearance.

The correct envelope size depends on the dimensions of your card or invitation. We offer a range of square envelope sizes suitable for both small cards and larger invitation formats.

Yes. Our range includes white, coloured, kraft, pearlescent, lined and premium square envelopes in a variety of shades and finishes.

Need Help Choosing an Envelope?

If you're unsure which envelope size is right for your cards or invitations, view our Envelope Size Guide for help choosing the most suitable envelope for your project.

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