What does the grammage of printing photo paper mean?

Gram weight refers to the weight of photo paper per square meter, measured in g/m². The greater the gram weight, the thicker the photo paper, the better the texture, and the higher the price.

Generally speaking:

Less than 150g/m²: thin paper suitable for general document printing.

150-250g/m²: medium thickness, suitable for photo printing.

Greater than 250g/m²: thick paper suitable for high-quality photo printing or artwork printing.