Enlarged object hit points.

[Pizza Lord]

Does an item have increased hit points when enlarged? For instance, if you have enlarge person active, your longsword will be large, does it then have double its normal hit points as for a normal large weapon in case there's a sunder attack or similar occurrence?

If so, what happens to the damage in regards to the item and its hit points when it stops being enlarged, when the spell ends or you drop or throw it for instance?

Example, a typical medium quarterstaff has 10 hit points, a large quarterstaff has 20. Assuming an enlarged quarterstaff increases to 20 (which makes sense, it's thicker, harder to cut through) and it takes 10 damage (disregard hardness for this example) it would normally be destroyed but now it's at half hit points (broken). If the spell ended, should the staff suddenly splinter apart? I don't think it should, be how should the damage and hit point situation be resolved?

[Eridan]

Short and simple.

The HP of the enlarged person are not increased so items HP are not increased too. The spell dont say it, the spell is called 'enlarge person'(intend is clear) and it would cause some follow-up problems.

[Nothing]

Yes, they will increase in hp, since all physical objects have hp based on their size (http://www.d20pfsrd.com/equipment---final/damaging-objects)

When the size is doubled, the hp will also be doubled.

As for what happens when the spell ends, there's nothing that says damage is mitigates, so I would say it retains all of the damage taken and becomes damaged or destroyed as appropriate when the spell ends. It would be a reasonable house rule to instead say that the damage is halved when the spell ends, though.

[Ravingdork]

It's definitely a gray area that would likely need GM adjudication.

I'm of the mind that it would gain the increased hit points whilst enlarged, and thus be tougher to damage, which makes sense for large objects.

If damage has already been applied to the weapon prior to the size change, I think that should be doubled as well--after all, a cut half way through the haft would still be cut half way through when made proportionately larger. If the weapon takes more damage whilst enlarged, apply it normally. When the enlarge effect ends and the weapon returns to normal size, reduce all damage it has accumulated by half along with the weapon's hit points.

Basically, if you managed to cleave halfway through the weapon's haft (or whatever) while it was large, then when it shrinks it will still have a cut half way through the haft (not 3/4 of the way through and not all the way through).

This basically keeps the damage proportional to the weapon's durability at all times, except for when it has been buffed.

It is mildly complex, but I think it makes the most sense.

[Pizza Lord]

I agree with your method Ravingdork. Thank you all for the input.

[blahpers]

I would not increase the item's hit points for the reason specified in Eridan's post.

[Nothing]

The spell does indeed say it explicitly:

Enlarge Person wrote:

All equipment worn or carried by a creature is similarly enlarged by the spell.

Hit points are based on item sized, as I linked above.

Is there any actual RAW or RAI argument against this?