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Thurbane
2012-03-21, 03:26 AM
Question: how much would a large set of double doors made of copper be likely to weigh? These doors are set in a 10'x10' section of wall, sized for a Large creature, and would be assumed to be somewhere between 6 inches and a foot thick...

Guesstimations welcome! :smallbiggrin:

hymer
2012-03-21, 03:33 AM
30,000 lbs.

I'm assuming the two individual doors are about 10' tall and 3' wide (about the ratio of my doors at home). If they're a foot thick, that's two doors of each 30 cubic feet. Copper weighs in at 542 lbs per cubic foot.

I'm thinking they must be reinforced with some steel...

Vizzerdrix
2012-03-21, 03:34 AM
What about copper plating on wood?

hymer
2012-03-21, 03:40 AM
Well, some dry, mid-weight oak weighs about 750kg per cubic metre, or 47 lbs per cubic foot. So with a thin copper plating, you could manage to make it weigh about 1500 lbs.

Thurbane
2012-03-21, 03:44 AM
30,000 lbs.

I'm assuming the two individual doors are about 10' tall and 3' wide (about the ratio of my doors at home). If they're a foot thick, that's two doors of each 30 cubic feet. Copper weighs in at 542 lbs per cubic foot.

I'm thinking they must be reinforced with some steel...
How about if we assume they are only 8'x3', and only between 4 and 6 inches thick?

What about copper plating on wood?
The reason I ask is a module I recently played through had a few sets of these doors in a dungeon. The text fairly specifically said "made of copper". I (semi-)jokingly talked about removing them and selling them for their material value (copper = 5sp per pound).

Vizzerdrix
2012-03-21, 03:54 AM
Aaaaah. I wonder if Shrink Item would help you then? Can you get access to it?

hymer
2012-03-21, 03:57 AM
Don't you have a calculator, Thurbane?
12 inches in a foot, right? I'm European. 8x3x½x542=6504

6,500 lbs for the dimensions you name, that's over 3,000 gp per door. Not that they're that portable or anything, and flooding the economy with that much copper is liable to drop the price considerably.

Coidzor
2012-03-21, 04:10 AM
Any solid metal structure is going to have some level of intrinsic value. Especially in a setting that's almost always with scarce resources despite adventurers hauling it in and dumping it into the economy and on war footing because beasties everywhere.

And yes, 12 inches to one foot. So 6504 it is, unless I've forgotten how to get cubic feet by multiplying the given dimensions together.

Thurbane
2012-03-21, 04:18 AM
Aaaaah. I wonder if Shrink Item would help you then? Can you get access to it?
Not really...dungeon's in the middle of a swamp, and we're only level 5. Our wizard isn't likely to invest in adding it to his spellbook at this point in time.

Don't you have a calculator, Thurbane?
12 inches in a foot, right? I'm European. 8x3x½x542=6504
I do, but I like to subcontract. :smallbiggrin:

6,500 lbs for the dimensions you name, that's over 3,000 gp per door. Not that they're that portable or anything, and flooding the economy with that much copper is liable to drop the price considerably.
True, true.

It was more a thought exercise than anything...

hymer
2012-03-21, 04:35 AM
Happy to have been of assistance.
I'll certainly be more careful with what I use for materials in my dungeons. Maybe some haunted gold doors or radioactive coins...

Mystify
2012-03-21, 07:31 AM
Ah, yes, the " The Dungeon Is Made Of Loot!" problem...