This question is highly debatable from smoker to smoker, but the 100-110mm x 55-60mm size allows for roughly .75 grams per joint. However, that’s an average. Some smokers can stuff double the amount in the joint, while others might put a gram in. .75 grams of weed is often the average amount you’ll find dispensaries filling their pre-rolled joints. It’s enough cannabis to pass around without canoeing or burning awkwardly.