Square 155mm Envelopes

Our 155mm square envelopes are ideal luxury wedding invitation envelopes for DIY wedding invitations and an essential for a crafters card making supplies. They are 155 x 155mm and fit our large square blank cards and large square pocketfolds. Many of our wedding envelopes are available in a gorgeous array of colours and paperweights. All are made in the UK from high-quality papers such as matt, recycled and kraft through to luxury pearlescent papers but at affordable prices with options to suit all budgets.

This envelope size fits a pocketfold, or large square creased blank card that's approximately 147 x 147mm when folded or a postcard that's 147 x 147mm approximately. They're ideal for making handmade greeting cards, DIY wedding invitations and combining with matching smaller blank cards, postcards or pocketfold invitations (use a small square 130mm square for your Save the Date cards and RSVP cards for pocketfolds).

View our handy envelope size chart or envelopes size guide for more information on our envelope sizes available to guide you when card making or designing your wedding stationery. This particular size is popular for handmade cards and perfect for wedding stationery for the big day, greeting cards and thank you cards.

Always check the postage rate for your finished design they can be posted at the Royal Mail letter rate as long as the final total thickness isn't more than 5mm.

Our blank cards and envelopes can be mixed and matched to enhance your wedding ideas and card making for friends and family.

Finally, for a real sense of luxury seal with one of our stunning sealing waxes. Our luxury coloured envelopes can also be used for wedding DIY for your big day, craft projects and card blanks for card making for friends and family. We are proud of our 5-star customer service and have many years of experience to help guide and help you in any way we can.