RAW 5e Lifting and Carrying
Your Strength score determines the amount of weight you can bear. The following terms define what you can lift or carry.
Carrying Capacity. Your carrying capacity is your Strength score multiplied by 15. This is the weight (in pounds) that you can carry, which is high enough that most characters don't usually have to worry about it.
Push, Drag, or Lift. You can push, drag, or lift a weight in pounds up to twice your carrying capacity (or 30 times your Strength score). While pushing or dragging weight in excess of your carrying capacity, your speed drops to 5 feet.
Size and Strength. Larger creatures can bear more weight, whereas Tiny creatures can carry less. For each size category above Medium, double the creature's carrying capacity and the amount it can push, drag, or lift. For a Tiny creature, halve these weights.
So, I agree. This doesn't really make sense. If the average person has a Strength of 10, they can lift 300 lbs? I can hardly lift 25 lbs. There's no way I could lift 300 even if I REALLY put my back into it. And that would mean that the average person could easily pick up and throw a person who weighs more than Homer Simpson (who weighs like 230 lbs, if I remember correctly).
So, yeah. RAW 5e doesn't always make sense. Lifting a weight in pounds up to twice your carrying capacity? No. That makes no sense at all.
Note, for those of you who don't know pounds, 180 lbs is roughly an average man with a height of roughly 6 feet tall, which is a fairly tall man. 160 lbs is more like the average height and weight of a man. Yeah. I don't get what they were smoking when they made up that rule. Maybe fireman's carry or something. Maybe.
