Where are the rules for objects?

[Arachnidious]

So, we have a problem.

This is a text from Player Core:
An item’s Hardness, Hit Points, and Broken Threshold usually depend on the material the item is made of. Information on materials appears in Starfinder GM Core.

We go to GM Core and there is a table for doors and walls. And that's all. We have no rules for any other objects - only for materiaks from table. No rules for precious materials, no fornequipment. How many HP has an ordinary sofa? If we use this table a very delicate laboratory metal equipment has as much HP as a metal shield. Why we have only a couple of pages in 1E with all rules for HP and Hardness, and everything was OK, but now we have tons of rules for PF in SF but not full rules for objects in shooting meta? Or did I miss something?

[Finoan]

Why do you need to know how many HP a sofa has? I'm not aware of a strict RAW way of attacking or damaging one.

Granted, you should be able to attack and damage a sofa. But all of the methods for doing so are up to GM discretion and adjudication. So the GM can use discretion and adjudication to also determine the sofa's HP, BT, hardness, and other needed stats such as AC, saving throw bonus values, and skill check defense DC (such as defense against Force Open actions).

[PossibleCabbage]

The standard in PF2 is basically that the durability (or lack thereof) of items in the background are subject to the needs of the story, and thus GM fiat. If the Maguffin needs to not explode even if someone threw a fireball at it, it doesn't. If the GM thinks "destroy that power coupling to inconvenience the enemies" is a fun thing to have happen that rewards player creativity, then it does.

The problem with "I have to look up rules for the material this desk is made of" is that's something that people almost never have close at hand so it slows down the game for someone to look something up. If it's something that "maybe the object gets destroyed, maybe it doesn't- I'm comfortable with both outcomes" then you just come up with HP/Hardness for the thing and let the dice decide.

If an uncommonly durable sofa survives an implausible amount of plasma fire, then maybe that becomes a fun thing (e.g. determine they need to keep that sofa).

[Justnobodyfqwl]

If it helps, I just used this table to rule basically this exact scenario you're describing.

I had a player who wanted to use their sniper rifle on a water fountain that was spraying water in anti-gravity formations. Their prismeni buddy had Electric Arc as a Living Battery, and so they wanted to make a huge source of water to conduct electricity better.

It was such clever and inventive thinking, I knew I wanted to make it happen. I used the material hardness table, used the stats for a masonry wall, and it only took a second to make the "fountain stats".

To be honest, since it was my first time DMing the system, I didn't realize that was only supposed to be for "doors and walls". I just took it as general advice for generic objects of that material, and it worked ok!

[Arachnidious]

Ok. Thanks all of you. This question was born because many people in my community think about more complicated or, from other side, easier system for covers and I think we have no enough information especially in comparisson with 1E.