Laurel shops for fabric in her local Philadelphia fabric stores.
The number of fabric stores in Philadelphia is far less than in the past, but the quality is excellent.
If interested in learning high-end drafting and technical procedures, consider taking private lessons with Laurel and/or buying her books. Laurel is a technical designer who set up the work for factories here in Philadelphia before retiring to raise her children. She learned industrial sample making from her sample makers.
Learn more about sample making as done in industry from the various posts on her blog:
https://laurelhoffmann.com/blog/
https://laurelhoffmann.com/172-home-sewing-procedures-dont-work/
https://laurelhoffmann.com/106-the-development-of-modern-apparel-manufacturing-methods/
https://laurelhoffmann.com/139-problems-with-fashion-education/
https://LaurelHoffmann.com
215 884 7065