The bar was...unusually reticent, in the lower layers of her mind (and she hadn't pried further; she wasn't sure if she'd be noticed; she wasn't sure if offending would get her kicked out, and regardless of whether it was actually safe it was safer than anywhere else she'd been for the past...three years?) so she couldn't be sure this place wasn't really a trap of some kind, but the higher layers gave a plausible explanation that didn't involve being a trap, and whatever else it was warm and dry and had food. Her guard was probably a full 25% down. Positively trusting, these days.
"Do you think we could borrow a sheet of steel or something from Bar? I want to see how well hard metals hold up against this thing," Rose says.
"I might ask anyway, about chunks of iron or whatever that would only be good for scrap anyway so it wouldn't matter how many pieces it was in so long as the mass was the same."
And Edie...will haul them outside one at a time with her unaugmented strength, because if there's one thing besides despair living through five years of apocalypse will teach you it's stubbornness.
And when the metal is all set up it can learn that it is susceptible to vigorous petaling.
"...Thanks. To both of you. And--I'm sorry, again, for--at the beginning." She looks at the somewhat scrappier scrap metal. "I think I had better get this stuff back to the Bar and then go home."
"Well, unless I'm drastically mistaken about what this spell can do, Iiiii'm about to go kill the Sentinel I was trying to hide from when I ducked in here."
"Oh, I will. The one good thing about this situation is that the use of nonsapient machines to carry out the slaughter means I don't have to restrain my vengeful impulses one bit."
And once it has been confirmed that this is all of it she returns to her world to invite extreme prejudice upon some Sentinels.