How should the intersection between extension and dimension lines be marked?

The appropriate method for marking the intersection between extension and dimension lines is to use a thick slash. This convention is established in drafting standards to clearly indicate this intersection point, helping to avoid confusion in reading the drawing. A thick slash provides a strong visual cue, ensuring that those interpreting the drawing can quickly identify where dimensions are referenced in relation to the objects being dimensioned.

Using a clear and distinct marking method, such as a thick slash, enhances the clarity and accuracy of technical drawings, contributing to effective communication of design intent. This is especially important in architectural and engineering contexts, where precise measurements and their respective locations are critical for successful implementation.