1. Layout Tools

2. Square The term square has many meanings. It refers to a: Tool
Specific four-sided shape
90-degree relationship between two things
Type of measurement called square measure

3. Square
A Square is a tool.

4. Square A Square is a four-sided shape. Has sides of equal length
Has all interior angles of 90 degrees
A square is a specific rectangle
EQUAL LENGTHS
EQUAL ANGLES

5. Square
Things are said to be square if they form a 90-degree or right angle.

6. Square Consider two boards.
When one is moved so they make a right angle,
they become
square with each other.

7. FRAMING SQUARE TABLES AND SCALES

8. Framing Square
Tongue
L-shaped metal tool
Blade or Body
Heel

9. Framing Square Framing Square is a centuries-old tool.
It contains a wealth of information.
Measuring Scales; eighths to hundredths
Rafter tables
Octagon scale
Brace scale
Board-foot table

10. Framing Square
It serves as a calculating aid for all types of carpentry work.
Today, the tables and scales can be replaced with a calculator and an understanding of carpentry theory.
But the information is still useful.

11. Measuring Scales Inch markings are broken into these different scales
Twelfths
Scales include
Eighths
Sixteenths
Tenths
Twelfths
Hundredths
Hundredths
Tenths
Sixteenths
Inch markings are broken into these different scales

12. Essex Board Foot Table Under the 10 for 1 × 10 14′ long
Provides the number of board feet (bdft) of lumber in various sizes.
Table assumes 1× boards and is read from the center of the table under the 12.
Read the board length under the 12
Read the board width under the larger numbers above.
Under the 10 for 1 × 10
14′ long
11 8/12 bdft
For example, find the board feet of a 1 × 10 – 14′

13. Brace Scale Provides the diagonal measure for braces of various sizes.
If the horizontal and vertical measurements are 30,
Then the diagonal is
42.43. 30
Brace 30
42.43

14. Rafter Tables
Six rows of information are provided for building a roof.

15. Conclusions Framing square has: A lot of information.
Scales for measuring and estimating.
Tables of information to save calculation time.
Large sides for accurate squaring objects.

16. Speed Square
Triangular Shape
Used to layout angles
Demonstration

17. The Kerf

18. The Kerf Cutting boards removes part of the board.
This is where sawdust comes from
We must account for this kerf when we are laying out our projects.
Typically saw blades will leave a 1/8” Kerf.
Space your lines at least 1/8” apart
Always cut on the “waste side” of the line