What is the thickness/weight of the (photo) paper you use?
The term ‘grams’ is used for paper, and is used by people to determine paper thickness. Photo paper is a mix of paper and emulsion, whereby the emulsion is heavier than the paper. A photochemical print of, say, 220 g/m2 will be thinner than a sheet of paper weighing the same amount.
We can therefore reference how heavy our photo paper is (around 220 g/m2), but this does not relate to the paper thickness people are familiar with.
It could lead to false expectations to use ‘grams’, which isn’t a customary term used in photochemical printing.