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Autodesk Labs: Project Tally
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Tally™, by KieranTimberlake and PE INTERNATIONAL, is a plug-in application for Autodesk® Revit® software that allows users to quantify the environmental impact of building materials for whole building analysis as well as comparative analyses of design options.

While working on a Revit model, the user can define relationships between BIM elements and construction materials from the database. The result is Life Cycle Assessment on demand, and an important layer of decision-making information within the same time frame, pace, and environment that building designs are generated.

Project Tally was a public beta where KieranTimberlake, PE INTERNATIONAL, and Autodesk were collecting feedback on the Tally technology from Autodesk customers. The technology preview has ended. Thanks to everyone who participated. There is now a commercial version available at