Cost of Large Mithril Chain Shirt Barding for Nonhumanoid? 1,400gp or 4,400gp?

[Gauss]

The rules state that the multipliers on table 6-6 applies to the costs and weights listed on table 6-8. Additionally, those rules states to apply it to the armor type not the type +masterwork and materials.

CRB p153 wrote:

Armor and shields for unusually big creatures, unusually little creatures, and nonhumanoid creatures (such as horses) have different costs and weights from those given on Table 6–6. Refer to the appropriate line on Table 6–8 and apply the multipliers to cost and weight for the armor type in question.

The rules for unusual creatures in Ultimate Equipment are laid out the same way.

UE p15 wrote:

Armor and shields for unusually big creatures, unusually little creatures, and non-humanoid creatures (such as horses) have different prices and weights from those given on Table 1–1: Armor and Shields. Refer to the appropriate line on Table 1–2: Armor for Unusual Creatures and apply the multipliers to price and weight for the armor type in question.

Summary: Only the costs and weights on CRB table 6-8 or UE table 1-1 are multiplied.

- Gauss

[Mystic Lemur]

So the mithril part of mithril chain shirt is 1,000gp no matter if it's for a pixie or a storm giant (or their respective mounts), because the "special material" part of the math is done after you find the base price of the armor?

I was just wondering if it was ever confirmed.

[Mathrian]

Gauss wrote:

Summary: Only the costs and weights on CRB table 6-8 or UE table 1-1 are multiplied.

- Gauss

I looked up both those entries and I have to agree with you, and thank you for sourcing those. It certainly seems quite definitive to me that it is 1,400 GP and if it comes up in one of my games I will definitely bring it up.