Advanced Player's Guide pg. 201
Ant Haul
Casting time: 1 standard action
Range: touch
Duration: 2 hours/level
Description
The target’s carrying capacity triples. This does not affect the creature’s actual Strength in any way, merely the amount of material it can carry while benefiting from this spell. It also has no effect on encumbrance due to armor. If the creature wears armor it still takes the normal penalties for doing so regardless of how much weight the spell allows it to carry.