The Top 5 Reasons to use Dynamo for Revit for Contractors

The Top 5 Reasons to use Dynamo for Revit for Contractors

Integrating Dynamo with Revit workflows supports contractors and other stakeholders in gaining an optimized pre-construction and construction output.

Dynamo is a visual programming tool that reinforces the capabilities of Revit. With complete access to the Revit API, contractors can extract or modify existing data. From splitting up floor slabs on pour areas, performing formwork calculations and exporting data points from Excel, Dynamo easily performs contractor-driven tasks through Revit.

A visual programming tool like Dynamo presents a host of opportunities to improve and streamline 3D BIM modeling workflows. Leveraging complete control over code, creating custom user interfaces, and reinforcing Revit APIs provides clear-cut capabilities in the preconstruction stage.

Revit by itself has powerful capabilities for AEC professionals and design automation firms to achieve construction deliverables. Nonetheless, it is challenged under certain functions or capabilities. Revit 3D modeling in the absence of Dynamo automation creates several issues for designers and contractors.

Challenges faced by designers and contractors without Dynamo automation

  • Repetitive pieces of work throughout the design lead to greater time consumption, higher manual intervention, and error-ridden 3D deliverables.
  • Perplexing model geometry in the preconstruction stage provokes inconsistent 3D modeling and inaccurate or incomplete access to project data.
  • Conventional 3D modeling workflows reduce model reliability, consume greater time, and restricts generative design.
  • Error-ridden design dominates diminished project performance, error-ridden output, greater time consumption, and costly rework.
  • nability to extract accurate data, modify Revit models, or write data to Excel inhibits onsite capabilities for contractors.
Revit Dynamo, Dynamo Automation, Design Automation

Image: A Dynamo Program Flow

Top 5 reasons why Dynamo Automation needs to be adopted by contractors

1. Reduce repetitive tasks, speed up modeling and produce quality deliverables

Dynamo supports AEC teams to cancel out repetitive 3D modeling tasks and speed up 3D modeling. Repetitive tasks that need to be performed 20, 40, or 100+ times are easily automated through custom Dynamo libraries. Various time-consuming applications can be automated through the Dynamo node library to:

  • Create sheets from views or Excel file. Renumber sheet sequence for thousands of sheets.
  • Batch insert Revit 3D model families.
  • Perform modifications to a myriad of sheets.
  • Modify sun settings.
  • Populate large amounts of data for mechanical equipment.
  • Auto-set equipment locations for spaces and rooms based on specific space names.
  • Place views on multiple sheets.
  • Adjust current offset height of a pipe to new inputs for pipe category.
  • Splice columns with a splice offset, elevation, column-level setting, and Revit element modifications.

Reducing manual intervention to create 3D Revit models produces high-quality deliverables in the preconstruction stage leading to better construction performance and efficiency for contractors.

An Architectural and engineering services firm from Europe required 3D BIM models at LOD 200 for 300 building units. The team at TrueCADD created a prototype 3D BIM model creation of the initial building with BOQs, floors plans, etc. They conducted a BIM model equivalence validation against various parameters using Revit APIs for 100%, 70%, and 50% equivalence.
Use of customized Dynamo scripts diminished repetitive tasks to speed up the modeling process. The business impact included:
  • Time reduction on project delivery by 50%
  • Cost savings of 18% with 100% accuracy and quality
  • Improved BIM model management
Revit dynamo, dynamo automation

2. Drive higher information effectiveness with improved design communication

The ability to merge data or information from various model sources simplifies data-specific activities. A two-way bridge between software like Excel and the Revit 3D model supports data modification and graph creation. This can also be used to generate project dashboards.

Quick information transfer leads to higher communication efficiency for contractors. This is done by connecting the Revit 3D model with various tools for data analysis through spreadsheets. Contractors can access accurate and complete project data from Revit models for construction.

3. Preemptive 3D modeling workflows support generative design for higher reliability and lower time consumption

An explicit definition of design rules for 3D models supports generative design possibilities. Using characterized parameters to modify design output supports generative design. Revit reinforced with Dynamo automation promotes the generation of complex geometry for sharp curves, patterns, and contemporary design.

Automation of mundane modeling processes during preconstruction drives improved design for improved constructability and contractor productivity.

4. Diminish manual intervention to speed up modeling, enhance accuracy, and mitigate rework

A customized and visual set of design options based on user-specific inputs and goals reduces 3D modeling errors. Dynamo helps design automation teams and contracting firms validate design performance for optimum solutions throughout preconstruction and actual construction. Revit 3D models reinforced with visual scripting promotes model quality control through visual differences in values or parameters.

Contractors can leverage multiple prototypes for analysis and quantities, reduce material waste, etc. to enhance project profitability. Furthermore, designers can calculate minimal energy consumption and circulation areas.

5. Extract accurate data, modify Revit models, or write data to Excel

Dynamo builds its geometry with parametric capabilities and reads and writes from and to third-party databases. This helps contractors extract model parameters, geometry, and custom family placement.

Contractors can use Dynamo to manipulate the Revit database, set directional relationships between inherent geometries, and leverage other endless capabilities. Contractors can utilize these to enhance onsite construction activities in collaboration with other teams or trades.


Automating a series of Revit commands and better longevity helps Dynamo address dynamic, evolving, and project-specific challenges. Contractors will continue to use Dynamo for quick information flow, visual clarity and reduce potential construction risks.

The capabilities of Revit would not only be limited to the creation of geometry, but tracking and controlling model data through Dynamo. Contractors will continue to explore powerful iterative frameworks to strengthen their construction bottom line through customized Revit workflows.

Authored by:

Harika Singh is an academician and published writer. Her passion for engineering and technology reflects in the in-depth coverage she provides on technology trends. 20 years of work association with institutes of repute across India and the US positions her to provide valuable insights to business stakeholders on achieving scalability and operational efficiencies through digitalization.