VRMH |
Depends. If it's a weight that needs to be moved, you can simply add up all the Strength scores (provided all parties can actually contribute). If there's a DC to be met, then you just add +2 for everyone who helps to the roll of the strongest person.
Which makes no logical sense whatsoever, but there you go.
Sacredless |
I suppose it depends on the situation if you allow for creativity. For example; two orcs move an ancient tablet. They are two-legged creatures, which means that at STR 17, they'd they'd have a light load of 86 lbs. or less, a medium load of 87–173 lbs. and a heavy load of 174–260 lbs.
Let's say that the slab is 250 lbs, so it's a heavy load.
We have two orcs lifting the stone. We could combine their total carrying capacity yes, but because there are two on both sides, they are technically also more stable. So, as a GM, you can rule that, for as long as they are carrying the slab, the two orcs and the tablet count as a large quadraped (four legs) of the same strength (17), but they cannot attack.
Large quadrapeds can carry 3x the weight of a medium biped.So rather than the orcs having a doubled carrying capacity, they have a tripled carrying capacity. What would otherwise have been a medium load is now a light load. And this makes sense to me; this is how two orcs might carry an orc chief with relative ease. I don't know if orcs do that, but you get my point.