Magically treated materials

Several places in the rules, magically treated materials are described as having double the hardness and hit points of ordinary materials. Is there any place a gold piece value is placed on magically treating structures and vehicles?

Do you have a link to these "several places in the rules"? I am unfamiliar with them.

Vehicles

Walls

I meant the first part of your original statement. I do not believe there are rules for using magic to double the hardness or hit points of ordinary materials.

(unless you mean the rules for magically strengthening primitive materials, such as bone and bronze, but that's purely to make them not suck)

"Is there anywhere that indicates how much it costs to have a boat with double hit points and hardness?"

Not that I know of. I think you may be misunderstanding something you read in a different section.

The closest thing I can think of is the Impervious weapon special quality. It's a flat +3000gp increase that you can place on a magical weapon, and it doubles the extra hardness and hit points that are granted by the weapon's enhancement bonus. It does not double the hardness or hit points of the weapon itself.

Can you recall where you found these rules you speak of?

You could try the 5th Level Wizard spell Unbreakable Construct (1 rd/L) and the 6th Level Wizard spell Hardening (permanent). Both of these only affect Hardness, not hit points though.

As for cost, if you can't cast the spell yourself, then you'd have to pay someone else to cast it.

Can you recall where you found these rules you speak of?

I linked them above.

The only thing I could find for magically treated was for walls...it's 1500gp for a 10x10 section

Where did you find that?

Only thing I can think of is the Fortifying Stone which is 1k for +5 hardness, +20 HP, and specifically limits the effect to 100 lb.

The only thing I could find for magically treated was for walls...it's 1500gp for a 10x10 section

Please, I beseech you. Where is this fabled catalog of wall costs?

Is THIS what you are looking for?

These walls are stronger than average, with a greater hardness, more hit points, and a higher break DC. Magic can usually double the hardness and hit points of a wall and add up to 20 to the break DC. A magically treated wall also gains a saving throw against spells that could affect it, with the save bonus equaling 2 + 1/2 the caster level of the magic reinforcing the wall. Creating a magic wall requires the Craft Wondrous Item feat and the expenditure of 1,500 gp for each 10-foot-by-10-foot wall section.

Yes. What book and section is that from?

The one you linked above.

The one you linked above.

... and so it is. Thank you! My eyes were about to bleed trying to find it. It's kind of weird that it appears in a section that seems otherwise devoid of any costs for walls. -- A little research shows this was the same in 3.5.

Yea sorry...long day at work or I would have replied

Thanks for stepping up Nefreet :)