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GSM and poundage are two different ways to measure the weight of paper, and they are commonly used in different parts of the world.GSM stands for grams per square metre, and it is a metric measurement of paper weight. It represents the weight of one square meter of paper in grams. For example, a 100 GSM paper would weigh 100 grams per square metre.Poundage, on the other hand, is a measurement of paper weight that is commonly used in the USA...

Unprimed canvas weight is often given in ounces because historically, canvas was primarily produced and sold in the United States, where the imperial system of measurement (ounces, pounds) is used. The weight of unprimed canvas is usually expressed in ounces per square yard eg 12oz.Primed canvas weight, on the other hand, is usually given in grams per square metre because it is more commonly produced and sold in Europe, where the metric sys...

Here at Art Supplies Castlemaine we believe in real customer service.You might call it old school, I prefer to call it being honest.So if you are looking for something that we don’t think you need we will listen carefully but we might try to talk you out of it.Plenty of cheaper options will do the job but that doesn’t mean the best quality isn’t worthwhile.One of our favourites is 200gsm Cartridge in A3 or A1+.This is a really sturdy paper...