How long do Walls of Stone & Iron last?

[Magic Rub]

How long do Walls of Stone & Iron last? The title says it all, are they perm. effects? Or do they have a duration? I don't have my PH with me & I need to know. Also what would be the weight per cubic ft. of each wall (in pounds please)?

 

[0-hr]

Wall of Stone

Conjuration (Creation)
Level: Clr 5, Drd 6, Earth 5, Sor/Wiz 5
Components: V, S, M/DF
Casting Time: 1 action
Range: Medium (100 ft. + 10 ft./level)
Effect: Stone wall whose area is up to one 5-ft. square/level (S)
Duration: Instantaneous
Saving Throw: See text
Spell Resistance: No


Wall of Iron

Conjuration (Creation)
Level: Sor/Wiz 5
Components: V, S, M
Casting Time: 1 action
Range: Medium (100 ft. + 10 ft./level)
Effect: Iron wall whose area is up to one 5-ft. square/level (see
text)
Duration: Instantaneous
Saving Throw: See text
Spell Resistance: N

They are permanent.

 

[Caliban]

They are more than permanent, they are non-magical once created, and can't be dispelled the way a "Permanent" magical effect can be.

There are web sites out there that have the mass values for both normal stone and iron. I have one bookmarked on my other computer, I'll post it late tonight if no one else has by then.

 

[Magic Rub]

Thanks in advance for the sites Caliban.

Second question why would people mine for Iron ore, & go to the trouble of proccessing it if Mages & Sorc. can just create pure iron sheets/slabs/blocks? Same goes for Stone wall, why quary?

 

[Dr_Rictus]

Because characters of high enough level to cast those spells generally have better things to do. One casting of a 5th-level spell goes for about enough money to pay for 5 man-years of common labor, IIRC.

 

[Magic Rub]

Because characters of high enough level to cast those spells generally have better things to do. One casting of a 5th-level spell goes for about enough money to pay for 5 man-years of common labor, IIRC.

Ah! But the time & lives saved... Seems odd I'd think. More of my NPC Mages are going to have Iron Clad Strong holds, & doors ect. ect.

 

[Dr_Rictus]

Ah! But the time & lives saved... Seems odd I'd think. More of my NPC Mages are going to have Iron Clad Strong holds, & doors ect. ect.

Time and lives saved are not necessarily the forces that drive economics.

That said, the issue you're discussing is covered in The Stronghold Builder's Guide, as I recall.

 

[Umbran]

Ah! But the time & lives saved... Seems odd I'd think. More of my NPC Mages are going to have Iron Clad Strong holds, & doors ect. ect.

Note that creating a wall of iron is not quite the same as incorporating that wall into a keep. There's be some interesting engineering and labor involved to incorporate said wall into a structure, I'd wager.

 

[Magic Rub]

Time and lives saved are not necessarily the forces that drive economics.
That said, the issue you're discussing is covered in The Stronghold Builder's Guide, as I recall.

Cool! I forgot about that book thanks!

 

[Severion]

Note that creating a wall of iron is not quite the same as incorporating that wall into a keep. There's be some interesting engineering and labor involved to incorporate said wall into a structure, I'd wager.

IMC i generally allow this with the proper skills (rolled) and now that i'm fazing in 3E i'de probably try to find an appropriat feat as well

Severion