CARPENTRY 3

• Measuring tools


  Tools used to measure and mark measurements on materials
• Measuring tools


  • Push-pull tape/steel tape
  • Zigzag rule
  • Marking gauge
  • Try square
  • Ruler
  • Meter stick
  • Caliper
  • Compass
  • Protractor
• Push-pull tape/steel tape


  • Used to measure longer distances, available from 1 meter to 50 meters
• Zigzag rule

  • A tool available in 4 feet and 6 feet long, commonly used by carpenters on rough layout
• Marking gauge


  • A tool most appropriate in marking lines parallel with the edges of the wood
• Try square


  • Used to check and mark right angles
• Ruler


  • Used for measuring short pieces of stock
• Meter stick


  • A measuring device which is one (1) meter in length
• Caliper


  • A special tool used to measure outside and inside diameter of cylindrical objects
• Compass


  • Used for scribing arcs and circles
• Protractor


  • Used for laying out angles
• English system


  System of measurement originated in England, also known as the U.S. customary system
• Metric system


  System of measurement developed in France, also known as the S.I. (International Standard)
• Units of linear measurement


  • Yard
  • Foot
  • Inch
  • Meter
  • Centimeter
  • Millimeter
• Board foot


  One square foot of lumber of one inch thick
• Calculating board foot of lumber

  1. Identify given data (thickness, width, length)

  2. Determine what is being asked (find board foot)

  3. State the formula (board foot = thickness x width x length / 12)

  4. Substitute given data and solve
• The available length of lumber in commercial places is cut using English system
• The length of lumber is determined in feet, and the sample cuts are 8', 10' and 12'
• The thickness and width may vary according to the desired sizes, and the unit used is inches
• Lumber measurement

  Feet (') - sample cuts are 8', 10' and 12'<|>Inches (") - thickness and width may vary, examples are 2"x3", 1"x1 1/2", 3"x5"
• Give the name of the following tools
• Tools


  • _________________
  • _________________
  • _________________
  • _________________
  • _________________
• Convert the following item

  1. 12 inches

  2. 3 feet

  3. 1 centimeter

  4. 1,000 millimeters

  5. 10 meters

  6. 1,000 meters

  7. 1 1/2 foot

  8. 20 centimeters

  9. 24 inches

  10. 10. 15 millimeters
• Conversion options

  • A. 1 meter
  • B. 18 inches
  • C. 200 millimeters
  • D. 1 foot
  • E. 1 kilometer
  • F. 1,000 centimeters
  • G. 36 inches
  • H. 10 millimeters
  • I. 4 yards
  • J. 1.5 centimeters
  • K. 2 feet
  • L. 6 centimeters
• Match column A to column B by finding the function of the given measuring tools

  • 1. Meter Stick - d
  • 2. Protractor - c
  • 3. Caliper - e
  • 4. Compass - a
  • 5. Ruler - b
• Find the board foot of each lumber

  1. Size: 1" x 1" x 12' - c

  2. Size: 1" x 2" x 8' - b

  3. Size: 2" x 3" x 8' - c

  4. Size: 2" x 5" x 10' - b

  5. Size: 2" x 7" x 12' - b

  6. Size: 3" x 4" x 10' - b

  7. Size: 3" x 5" x 12' - a

  8. Size: 4" x 4" x 10' - b

  9. Size: 5" x 7" x 12' - a

  10. 10. Size: 8" x 8" x 10' - b
• Give the following symbol or abbreviation of each unit and determine if it is English or Metric System

  • Inches -
  • Meter -
  • Yard -
  • Centimeter -
  • Feet -
• For online learners: Take a video of you while measuring a piece of wood
• For offline learners: Give 3 different sizes of lumber that are available in hardware near your place. Find the board foot of each size of a lumber.