1. Architectural Lines and Lettering
Chapter 6
Architectural Lines and Lettering

2. Introduction Drafting Universal graphic language
Uses lines, symbols, dimensions, and notes to describe a structure to be built
Properly drawn lines are dark, crisp, sharp, and of a uniform thickness

3. Line Characteristics Each line conveys a particular meaning
Thicker lines are more dominant and intended to be seen
Thinner lines are subordinate but just as important
Lighter lines can be used as guides for drawing other features or for lettering properly

4. Types of Lines Object lines (i.e., Continuous lines)
Show outline of objects in plan or elevations

5. Types of Lines (cont’d.)
Dashed lines (i.e., hidden lines)
Show features not visible in the view or plan

6. Types of Lines (cont’d.)
Extension lines
Show extent of dimension
Dimension lines
Show dimension length
Terminate at related extension lines with slashes, arrowheads, or dots

7. Types of Lines (cont’d.)
Leader lines
Thin, dark, and crisp
Used to connect notes to related features
Drawn freehand or with irregular curve

8. Types of Lines (cont’d.)
Break lines
Used to remove a portion of an object, show a partial view, shorten a long object
Also used to terminate features when extent is clearly defined
May be long or short

9. Line Sizes in CAD Color Dependent Plotting White-Walls are thick
Cyan-Dimensions are thin
Thick (0.025”)
Floor plan wall outlines
Elevation Outline/ Accent
Section Accent
Foundation outline
Thin (0.012”)
Floor plan symbols
Elevation Features
Section Features in foreground

10. Lettering Basic terminology: Composition Justify Lettering Text
Lettering spacing, layout, and appearance
Justify
To align text
Lettering
Traditional handmade letters and numbers
Text
Lettering using CAD

11. Lettering (cont’d.) Basic terminology (cont’d.): Annotation Font
Text, notes, dimensions, and text symbols
Font
Assortment of one size and style of lettering or text
Text style
Set of text characters (e.g., font, height, width)

12. Lettering (cont’d.) Single-stroke lettering
Single straight or curved line elements
Makes text easy and clear to read

13. Lettering (cont’d.) Slanted lettering
Slant to the right with an angle of 68° from horizontal
Uppercase slanted lettering is used for water feature names in mapping

14. Lettering (cont’d.) Lettering height Minimum should be 1/8" (3 mm)
Some companies use 5/32" (4 mm)
All dimension numerals, notes, and other lettered information should be the same
Except titles, drawing numbers, and captions
Height of fraction numbers should be the same as other lettering associated with the fraction

15. Lettering (cont’d.) Rules for lettering and text numeral applications:
Foot units are followed by foot symbol ('), and inch units are followed by inch symbol (″)
Inches and fractions are used for values less than 12 inches (e.g., 6″)

16. What are Advantages of CAD Lettering
Text is consistently placed in shape and size
Text is easily modified
Insertion point indicates where the text starts
Text can be easily moved, copied, etc.
Architectural Fonts
SylusBT
CityBlueprint
Arch
Archstyle
Archquick

17. Lines and Lettering Assignment
Sketch the kitchen example in figure 5.1 using most of the line types. Sketch the remaining line types below and label with proper architectural lettering what each line type is and use is. Use construction lines to keep lettering lined up.