Our cards, invitations and stationery come in 3 sizes, with envelopes in corresponding sizes:
• Portrait: 127.0mm (w) x 177.8mm (h)
• Landscape: 177.8mm (w) x 127.0mm (h)
• Square: 133.0mm x 133.0mm
You can find the dimensions of any product on the left hand side of the image on the product's own page, once you've clicked on the preview image.