Carrying limits?

[William Tharpe]

Are there limits to what an animal can carry? Provided it is within the weight load limits could a creature huge or larger have an archer's nest on its back? or a small cabin or something?
Also is there a table for the size weight of buildings somewhere?

[Traken]

Carrying Capacity is fully defined in the Additional Rules chapter. See http://paizo.com/pathfinderRPG/prd/additionalRules.html#carrying-capacity.

Typically, a creature can be used as a mount for another creature that is one size smaller than itself. It might be fair to rule that as long as the "building" is one size smaller than the creature and within the creature's weight limit, it can sufficiently carry it.

I'm not aware of anywhere that defines the size or weight of buildings.

[Starglim]

William Tharpe wrote:

Are there limits to what an animal can carry? Provided it is within the weight load limits could a creature huge or larger have an archer's nest on its back?

A howdah? Certainly.

William Tharpe wrote:

Also is there a table for the size weight of buildings somewhere?

I sincerely doubt it, but it shouldn't be all that difficult to work out weight per unit area for walls of a particular construction style (thickness x proportion of the wall's volume made up of solid materials x density of each material).

edit: It should be somewhere between the weight of a rowboat (100 lb) and a carriage (600 lb). I'd probably estimate an open platform at 200 lb or one with lightweight walls at 300 to 400 lb. A heavily armoured construction should weigh an additional amount equal to a comparable type of armour for a creature of its size.