What GSM is best for wedding invitations?

GSM stands for grams per square metre, and it tells you how heavy the paper is. For wedding invitations, 300 to 350gsm is the sweet spot for the main card. It feels substantial and holds its shape, whether you are sending a single card or a folded one. If you want a more delicate look, 250gsm can work, but it may feel a little thin. For a heavier, more luxurious feel, 400gsm is possible, but it can be harder to fold and may need a larger envelope. Inserts such as RSVP cards, maps or accommodation details are best at 200 to 250gsm. They need to be readable and easy to handle, but they do not need the same weight as the main invitation. The GSM also affects how the paper takes ink and finishes. Heavier papers absorb less and give crisper results with foil or letterpress. Lighter papers can show ghosting if printed on both sides. Always check with your printer, because the same GSM can feel different depending on the fibre and coating. A textured paper at 300gsm may feel softer than a smooth one at the same weight.