Sep 20, 2026  
2026-2027 College Catalog 
    
2026-2027 College Catalog

WLD 115 - Blueprint Reading/Estimating

4 Contact Hours, 4 Credits
4 lecture periods 0 lab periods


Principles and procedures for interpreting structural blueprints and determining materials and labor costs. Includes fundamentals of blueprint reading, welding print format and types of fabrication blueprints, welding symbols and sizes, structural shapes and symbols, and blueprint interpretation. Also includes introduction to estimating, bonds and insurance, materials specifications, labor, structural steel systems, and steel fabrication checklist.

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Course Learning Outcomes
  1. Interpret the types of welding symbols used on blueprints and the significance of each element.
  2. Interpret detail drawings, assembly prints, and subassembly prints.
  3. Describe general and subcontractor building construction estimating procedures.
  4. Identify the types of structural steel systems on retail buildings.

Outline:
  1. Fundamentals of Blueprint Reading
    1. Basic lines
    2. Basic views
    3. Sketching
    4. Notes and specifications
    5. Dimensions and methods
    6. Limits and tolerances
    7. Units of measurement
    8. Radius and arc dimensions
    9. Scale sizes
    10. Preparation of bill of materials
  2. Welding Print Format and Types of Fabrication Blueprints
    1. Structural shapes
    2. Size specifications for structural shapes
    3. Conventional breaks
    4. Auxiliary views
    5. Partial views
    6. Detail views
    7. Section views
    8. Detail and assembly prints
    9. General abbreviations and structural and symbols
  3. Welding Symbols and Sizes
    1. Basic welding symbols
    2. Types of welds
    3. Location of welds
    4. Combined weld and welding symbols
    5. Weld sizes
    6. Weld strengths
    7. Weld designs
    8. Weld contour
    9. Welding abbreviations
    10. Joint designs
  4. Structural Shapes and Symbols
    1. Identification of structural steel
    2. Nominal and basic sizes
    3. Structural steel symbols
    4. Threaded fasteners
  5. Blueprint Interpretation
    1. Detail drawings
    2. Assembly prints
    3. Subassembly prints
  6. Introduction to Estimating
    1. Building construction estimating
    2. General contractors
    3. Subcontractors
    4. Material suppliers
  7. Bonds and Insurance
    1. Surety bonds
    2. Statutory bonds
    3. Nonstatutory bonds
    4. Bid bond
    5. Performance bond
    6. Labor and material bond
    7. Worker’s compensation insurance
    8. Builder’s risk fire insurance
  8. Materials Specifications
    1. Description of materials
    2. Construction systems
    3. Workmanship
    4. Invitation to bid
    5. Instructions to bidders
  9. Labor
    1. Wages and rules
    2. Field reports
    3. Pricing labor
  10. Structural Steel Systems
    1. Structural steel specifications
    2. Structural steel framing
  11. Steel Fabrication Checklist
    1. Steel shapes
    2. Engineering (fabrication, drawings, inspection)
    3. Installation (welding, bolting, etc.)
    4. Miscellaneous (chips, anchor bolts, ties)