A character’s carrying capacity depends directly on the character’s Strength score, as shown below.
If the weight of the character’s gear exceeds her Maximum Load, she can carry it for a number of minutes equal to her Constitution × 4 minutes before she is fatigued. If she is performing some strenuous action, the time is halved.
Lifting and Dragging: A character can lift up to her maximum load over his or her head for a number of rounds equal to her Constitution.
A character can lift up to double her maximum load off the ground, but she can only stagger around with it. She can do this for a number of rounds equal to her Constitution × 8 minutes before she is fatigued.
A character can generally push or drag along the ground up to five times her maximum load. Favorable conditions (smooth ground, dragging a slick object) can double these numbers, and bad circumstances (broken ground, pushing an object that snags) can reduce them to one-half or less.