A wide range of card thicknesses are considered suitable for Business Cards. However, anything under 290gsm might prove too flimsy and could reflect poorly on your brand. Conversely, anything above 850gsm might leave your recipient struggling to get the card into the slots of their purse, wallet or Business Card holder.
At Solopress, our Business Card thicknesses range between 400gsm Economy Business Cards up to our 810gsm Triple Layer Business Cards.