Extensions make working with the Revit API much easier and more intuitive. They add helpful methods that make your code cleaner, easier to understand, and simpler to maintain. Generics, nullable, everything here.

You can install the Extensions as a NuGet package. The packages are compiled for specific versions of Revit. To support different versions of libraries in one project, use the RevitVersion property: Package included by default in Revit Templates. FindParameter extension finds a parameter in the instance or symbol by identifier.

By Justin Doughty If you are a Revit 2018 user that hasn’t had the 2018.1 update, or do not have the US Metric content installed (which most UK and European users do not), there is free additional content that can be downloaded from Autodesk here: Autodesk Revit 2018.1 Content

An Autodesk® Revit® Add-In with a lot of features to support designing piping systems, especially plumbing. This plugin facilitates for Autodesk® Revit® the creation of conduits between families with conduit connectors and the placement of interconnected conduit fittings. Export to Augmented reality.