Metal Fabricator how-to

How to Read Weld Symbols on a Drawing

Symbols tell welders what to do.

Updated By the Career Education Institute Curriculum Team
Quick answer

Symbols tell welders what to do. In short: find; read; read, then complete the remaining steps below.

Step by step

  1. Find the reference line.

  2. Read the arrow side.

  3. Read the other side.

  4. Note size and length.

  5. Note all-around symbols.

  6. Ask if unsure.

Safety reminders for metal fabricators

  • Wear welding PPE
  • Use cranes safely
  • Guard saws
  • Prevent burns

Fit-up · Tack weld · Layout · Square · Gusset · Press brake: see the full metal fabricator glossary.

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