Simplified Training Framework
Real-World Examples and Prints
Make Better Technical Decisions
Learning how to use geometric dimensioning and tolerancing (GD&T) shouldn’t be complicated or time-consuming. That’s why we started GD&T Basics - to give you the practical GD&T knowledge you need to design, manufacture, and inspect parts more efficiently.
Our ASME Certified instructors have trained 10,000 engineers, machinists, and production managers at the world’s leading manufacturers. Our pragmatic approach to GD&T saves clients countless hours, millions of dollars, and hundreds of headaches by preventing deviations, delays, and disputes.
Companies That Trust GD&T Basics for Training
















Overwhelmed by the Complexity of GD&T Training?
- Confused by GD&T standards and symbols?
- Wondering, “What is GD&T, anyway, and why do I need it?”
- Preparing for your GDTP certification exam?
- Lacking the required GD&T experience to get a job?
- Struggling to find GD&T training online to fit your needs?
- Assuming that GD&T will just make your parts more complex?
- Searching for a GD&T online course designed for the real world?
Other GD&T certification training programs teach you how to memorize the ASME Y14.5 standard, but not how to apply it to your production process. At GD&T Basics, we combine practical GD&T knowledge with real-world experience to give you a technical curriculum with practical context.
Benefits of Training with GD&T Basics
While other engineers are struggling through ineffective classes, you’ll be capitalizing on these advantages of our unique GD&T training approach.

Simple Framework
Conquer confusion with our straightforward approach that teaches you how GD&T can simplify production, instead of overcomplicating it.

Practical Examples
Learn how to solve real engineering problems by applying GD&T to actual examples, rather than memorizing theories you’ll never need.

Flexible Formats
Access training when, where, and how you want with GD&T online training, on-site classes, public seminars, and customized solutions.

Certified Experts
Engage with Senior-Level GD&T Certified Instructors who teach from real-world industry experience and time-tested GD&T knowledge.

Maximum Value
Make the most of your training budget with group rates and bundling discounts, backed by the GD&T Basics 30-day money-back guarantee.

Fast Results
Implement your GD&T skills immediately with a confident grasp of how these standards impact your daily production workflow.
Who Needs GD&T Training?
Our GD&T classes are designed for anyone who makes, reads, and uses technical drawings, including:
- CNC Machinists
- Measurements Technicians
- Quality Engineers
- Current Engineering Students
- Design Engineers
- Entry Level Engineers/Technicians
- Engineering & Production Managers
- CAD Engineers
- Machine Shop Owner or Operators
- Automotive Engineers
- Mechanical Engineers
- ...and More!
Choose Your Training
Get flexible GD&T training solutions for your group or just you.
Training for My Team

Get your company’s design, manufacturing, and inspection teams in-sync with GD&T group training. Our team-based courses can be tailored to solve your toughest engineering challenges, providing laser-focused curriculum to streamline communications, minimize waste, and control costs.
- Free Consultation
- On-site or Online
- Group Discounts
- Option to Host on Your LMS
Training for Myself

Advance your technical career with our self-paced GD&T online training for individuals. Designed to make you the go-to engineer, our courses equip you with the confidence to use GD&T correctly in any role. You’ll learn practical skills you’ll use every day on the job.
- 24/7 Video-On-Demand Access
- Learn at Your Own Pace
- Real-World Job Skills
- Certificate of Completion
Recent Blog Posts
Reading our blog is almost like getting free GD&T training. Check out our latest posts.
Go/No-Go Gaging and Rule #1
In this Question Line Video, Brandon explains Rule #1 of GD&T (the Envelope Principle) and how Go/No-Go gages are used to verify that Rule #1 is met for a feature of size.
Meet the GD&T Basics Team: Jason Richter, Training Design Engineer
As our Training Design Engineer at GD&T Basics, Jason Richter is responsible for creating and maintaining lessons and visual content for our courses and YouTube page, as well as hosting our GD&T Public Training Seminars.
Inner or Outer Diameter as Datum Feature
In this Question Line Video, Jason discusses datum preferences for hollow cylindrical parts, where both the ID and OD of the part are mating features.
Flatness on a Per Unit Basis
Jason discusses form controls on a per unit basis using the example of controlling flatness on a large surface in this Question Line Video.
Not Ready to Enroll Yet?
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