Start with cardstock around 250 to 300gsm for invitations and greeting cards, and 350gsm for firm business cards. GSM alone does not guarantee thickness or stiffness, so check the product and your printer.
| Item | Starting weight | Notes |
|---|---|---|
| Certificates, light cards | 160gsm | Easy to feed, less rigid |
| Invitations, greeting cards, menus, postcards | 250 to 300gsm | Score before folding |
| Business cards, firm invitations | 350gsm | Confirm the tray accepts it |
See 250gsm vs 300gsm cardstock.