wizardbuyer said:
What is the difference between the hardness, HP, AC or Break DC of standard weapon and a LARGE version of it? Like a greatsword has hardness = 10, HP = 10, AC = 0 and Break DC = 27 with size L. What are the values for a large greatsword with size H?
Where did you get those numbers? I'm not seeing a break DC noted specifically for a greatsword anwwhere, and I think your AC is off.
See
breaking items.
And also:
A weapon’s size category isn’t the same as its size as an object. Instead, a weapon’s size category is keyed to the size of the intended wielder. In general, a light weapon is an object two size categories smaller than the wielder, a one-handed weapon is an object one size category smaller than the wielder, and a two-handed weapon is an object of the same size category as the wielder.
A medium greatsword (one for a medium character) has hardness 10, 10 hit points, is a medium object, having an armor class of 10 -5 (Dex 0) +0 (size) -2 (for being inanimate) = 3. We'll assume your break DC is correct and say it's 27.
A small greatsword has hardness 10, 5 hit points, is AC 4 (small size), and probably break DC 25 since it has half as many hit points as the sword. Maybe 26. I don't really see a rule on that anywhere.
A large greatsword, extrapolating, would have the same hardness as a medium greatsword, twice as many hit points, be large size, and have a somewhat increased break DC.
So hardness 10, hit points 20, AC 2 (large size), and break DC 28 or 29, depending on if you figure a size change should be 1 point of break DC change or 2.
In general, a large weapon has the same hardness as the medium weapon, twice as many hit points, 1 point lower armor class (which almost never matters), and a break DC 1 or two points higher.
Hope that helps.