24-25 (7): Pinnacle of brawn, able to out-lift several people.
22-23 (6): Can pull very heavy objects at appreciable speeds.
20-21 (5): Able to out-wrestle a work animal or catch a falling person.
18-19 (4): Can break objects like wood with bare hands.
16-17 (3): Carries heavy objects with one arm.
14-15 (2): Visibly toned, throws small objects for long distances.
12-13 (1): Carries heavy objects for short distances.
10-11 (0): Can literally pull their own weight.
8-9 (–1): Has trouble even lifting heavy objects.
6-7 (–2): Difficulty pushing an object of their weight.
4-5 (–3): Knocked off balance by swinging something dense.
2-3 (–4): Needs help to stand, can be knocked over by strong breezes.
1 (–5): Morbidly weak, has significant trouble lifting own limbs.
Below are some quick descriptions of every stat, from 1 (a modifier of -5, or as low as a character can get without being undead or a construct) to 25 (a modifier of +7, or as high as a PHB character can get without magic): I put together this list a few years ago to try to put this in simple language. What’s the actual strength difference between a person who can lift 80 pounds and a person who can lift 100 pounds? How tough is a bard with Constitution of 14, really? What does it mean for my character when I roll poorly and have to drive the 3-Charisma barbarian? The problem is that this still leave a lot to interpretation. The most common of these is “Charisma correlates strongly to good looks”, which is incorrect and tends to irritate players of low-Charisma characters, but anytime there’s something the stats don’t cover explicitly (like weight and build), we try to draw conclusions about them based on the hard numbers we have. I’ve heard a lot of interpretations of ability scores.