Revit wall area is incorrect if you want it including the openings area. This add in allows you to get the gross area (including openings) correct.Català - Castellano - Deutsch
The way Revit calculates wall areas that have openings (doors, windows, etc) in them is by giving you the wall area minus the opening area. While this might be of some use, if actually you need to get accurate quantities I doubt this will do. The way the areas of the walls should be quantified according to, at least, our local standards is by including the opening areas that are below certain sq meters. Revit can't give you that by default (as far as I know) it just gives you the wall area minus the openings, see the example:
We need to be able to schedule the area of those openings (hello Autodesk??). Recently found an Addin, that allows to do that. It is called AutodeskWallOpeningArea (updated link)and gives you the chance to get this done right. After downloading it and installing it (simply run the .msi file) you will have a new button on your Add-ins tab in the Revit Ribon:
The results you get are divided according to an area value you can set. All the openings below that Maximum value are stored as Opening Area Smaller Max, and the total openings area are added to the Opening Area Parameter. Now, you can schedule this parameters and get the Gross area of the wall by playing with calculated parameters. In this case I simply Added wall Ara + Opening Area to get the Gross Total that would be used on a project estimate.
- The parameters are not dynamically updated, which means that the command must be executed in order to updated the parameter value. Is is a major problem, actually and goes completelya gains the BIM approach of an integrated database, let's be serious, this sucks badly.
- The Addin must be executed from a 3D view with all relevant elements (walls, doors, windows, openings, etc) visible. Second Major HUGE flaw.
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