LETTERING IN ARCHITECTURE

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  • Writing of titles, dimensions, notes and other important particulars on a drawing is called lettering.
  • Important part of a drawing.
  • It should be clear, legible and uniform in its style.
  • It should be in plain and simple style so that it could be done free hand and speedily.
LETTERING
  • Lettering is generally done in capital letters.
  • Different sizes of letters are used for different purpose
  • The main titles are generally written in 6mm to 8mm sizes.
  • Subtitles are written in 3mm to 5mm sizes.
  • The drawing number in the title box is written in numerical of 10mm to 12mm size.
  • The width of majority of letters is equal to the height.
  • All letters should be uniform in shape, slope, size and shading.
  • H or HB grade of pencil is recommended for lettering.

1) Different types of Lettering

  • Single stroke letters
  • Gothic letters

Guidelines

  • In order to obtain correct and uniform height of letters and numerals, guide lines are drawn, using 2H pencil with light pressure / 6H.
  • HB grade conical end pencil is used for lettering.

2) Lettering – Straight line letters

  • Vertical capital letters are preferred for most technical work. They are formed within a 6 by 6 grid.
STRAIGHT LINE LETTERS
STRAIGHT LINE LETTERS ONE
  • This sequence is recommended to assure that each letter is the correct width in relation in height. For example, form the two vertical sides of the “H”, “N” and “M” first. Form the top of the “T” first.
STRAIGHT LINE LETTERS TWO
  • The “H” and “N” are slightly narrower than they are tall. The “T” and the “M” are just as wide as they are tall
STRAIGHT LINE LETTERS THREE

Note: Proportion: width vs. height is very important in forming letters.

3) Basic strokes

BASIC STROKES

Examples : Application of basic stroke

BASIC STROKES ONE

4) Upper – case letters & numerals

UPPER CASE LETTERS

5) Lower – case letters

  • The text’ s body height is about 2/3 the height of a capital letter.
LOWER CASE LETTERS

6) Lettering – vertical gothic font

VERTICAL GOTHIC FONT
VERTICAL GOTHIC FONT ONE
VERTICAL GOTHIC FONT TWO
VERTICAL GOTHIC FONT THREE
VERTICAL GOTHIC FONT FOUR

7) Example : Good and poor lettering

GOOD AND POOR LETTERING

8) The recommended size of lettering in under

ITEMSIZE h, mm
1.Drawing number in Title Block and letters denoting Cutting Plane Section10, 12
2.Title of Drawing6, 8
4.Sub-titles and Headings3, 4, 5, 6,
5.Notes, such as Legends, Schedules, Material list,
Dimensioning
3, 4, 5
6.Alteration, Enteries and Tolerances2, 3

9) Examples of lettering errors

LETTERING ERRORS

10) Sentence composition

  • Leave the space between words equal to the space requires for writing a letter “O”.

Example

SENTENCE COMPOSITION

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