Which cardstock should I use for wedding invitations? I don't know what yhe letter and numbers mean A7 etc.

If you could tell us a little more about what you might be needing, we may be able to offer some suggestions.  Please fill out our Card Stock Request Form or our Print Request Form.

Does "flat" mean that it is flat and not a folded card?

The cards are flat without a score (fold) line and they measure 5x7 inches.

Are these cards scored?

Hi,

These are not scored, these are flat cards without a score line.

Here is the link to cards that are scored for easy folding: https://www.cutcardstock.com/collections/blankfolded5x7invitations/products/classic-crest-5x7-folded-discount-card-stock