What's the proper way to interpret floor plan wall thickness?

[Caveman]

I've got some house plans and I'm unsure how to interpret the wall thicknesses shown... There is no dimension given for the wall thickness so I have to assume...

Q: Is the right to assume the walls are "finished" thickness = 3.5" for standard 2 x 4 framing + standard sheetrock thickness (whatever that is)

OR...

are the walls shown on the plans the non sheetrocked, framing thickness of 3.5"?

 

[I Saw OJ]

Interpreting wall thickness, so easy even a cave man can't do it.

Sorry, but I couldnt resist

 

[SilthDraeth]

Hmm. I would think the wall thickness displayed would be the thickness of a standard wall, unless otherwise noted. I believe it is 4" thick. Not 100% sure, but that is how I would interpret.

 

[MikeyIs4Dcats]

generally floor plans indicate finished wall thickness. For most residential, the walls will be 3.5" + 0.5" + 0.5"

Some walls, especially where plumbing will be run, will be thicker, so plan they are 5.5"+0.5"+0.5"


Not sure why it matters to you though. Most house floor plans will have finished rooms sizes on them.

 

[Caveman]

Thanks Mikey, what you say sounds "right"... I'm taking a set of existing plans and entering them into a CAD package for alteration... The plans did not explicitely say what the wall thickness was... I've since found out that it's 3.5 + .5 +.5 = 4.5" shown... This corroborates with what you say... Thanks for your help...