A4 paper sheets

[Nilt]

Standards are 80 gr / square meter

I always buy 120 gr though

Just feels and looks better. Doesn't crumble as easily. When you send a letter the other person is only holding that one sheet. Give them something to hold, not something that folds around every edge you're not grabbing.

Just a thought.

 

[pintoca]

120 grs is almost carboard...

 

[Nilt]

It's fine. a folded sheet fits in a standard envelope, so it's all good.