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Forums >> Revit Building >> Technical Support >> Actual VS Nominal
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Joined: Fri, Nov 12, 2010
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This may be a stupid question but it has come up a few times for me. When you are drawing a wall system that lets say is 5/8" gyp. both sides on 2X4 wood studs would you draw that wall as 4 3/4" actual thickness or 5". I know that standard practice is to draw it at 5" but then what do you do for you wall sections, details etc. since revit is actually building the model. I'm just looking for input on how others approach this. Thanks!
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We always draw actual....2x4 is 4-1/2" Actual. I have been using CAD for 15+ years, and have never drawn a stud at a nominal size, so would disagree that drawing it nominal is "standard". When we dimension, it is to studs. If we measured to nominal, the guys building it in the field would scratch their heads if we called out the thickness of the wall as 4" (or 6" for a 2x6). In Revit, it is extremely important to draw it actual, as when you do details and blowups, you need the stud layer to be the correct thickness.
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Joined: Fri, Feb 10, 2006
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a 2x4 is 3 1/2" actual. i draw things actual. "model as you would build it".
Edited on: Thu, Apr 5, 2012 at 9:49:22 AM
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couldn't agree more... actual is the way to go and model it like you would build it!
if you are going to have dimensions that aren't accurate to real life then you are just negating the power of BIM and Revit.
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