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Forums >> Revit Building >> Technical Support >> Wall quantities with offsets
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Joined: Sat, Oct 25, 2003
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when you create a wall assembly and have an exterior layer that is unlocked, and change the offset (as in the case of a stone veneer on a concrete wall that doesn't go all the way to the base) is there a way for the wall schedule to calculate JUST the reduced wall veneer, not the total wall assembly?
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Joined: Mon, Mar 14, 2005
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good question  the only way I can see to achieve this is by adding a parameter to the wall schedule something like: your wall overhang x wall length, that should give you the areas... though I never did it, let me know if it works...
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That would work except the wall Element Property is "base extension distance" which is not an available field in the "Schedule Properties".
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you will need to add the parameters yourself in the field window of your schedule properties. add one that's called "bottom" (or whatever you like) then add a "Calculated Value..." see attached image, since you know that the extension is a given number, it will be easy to calculate. hope this helps
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what is your field called "bottom". The parameter I would need to calculate from is the "base extension distance". Is there a way to have that become an "available field".
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"bottom" is a parameter I created instead of "base extention distance" since it's not in the parameters list (why? i don't know!) so, base extention is a given number, which you will need to enter in order for the formula to work, it's a bit of a round way around a problem that shouldn't have been there in the first place
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Are you manually entering the value for bottom? In other words, the program is not reading it from the actual wall based on the base extension offset?
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that is correct! i haven't found a way to get the parameter to show up with the correct value, but since you know the distance and I assume it's going to be the same all around the building, this is just a quick fix to get results.
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I put in a new parameter called VeneerOffset and a subtotaled calculated field called Veneer which is Area-(Length*VeneerOffset) It only takes a couple minutes to manually enter the VeneerOffsets which I did using a 3d view working around the structure. No exactly full blown BIM but does the trick. I found it helpful to re-set the schedule to schedule properties/sorting-grouping/itemize every instance so as not to miss a wall insance. Bingo. thanks! I wonder if there is a way though to grab parameters from a family and add them to the "available fields". the one I've alwys wanted was to show the hand of the door (which isn't actually a parameter but an orientation).
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Also, in my schedule "wall height" in the attached schedule is a manually entered value, assists in quantity takeoff for concrete work. Ought to be an available parameter but isn't.
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There is no "wall height" parameter, I don't think they plan on adding it too. the problem is that your wall might go from level 1 to level 2 but if you edit the profile and took part of it to level 3 it will still read as level 2... once you add this parameter you are open to more mistakes.
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I see your point. But "Unconnected height" displays in the schedule even if you spec'd from level x to level y. It would be helpful to be able to display "Unconnected height". in the schedule or calculate using that "Unconnected height".
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