Chapter V: Summary of Design Steps

(_a_) Construction of the rectangle representing the vertical
or horizontal character of the primary mass with desirable
proportions. Select the most prominent surface for this
rectangle, preferably the front elevation.

(_b_) Subdivide this rectangle into two or three structural
sections, horizontal and vertical in character. Make two or
three trial freehand sketches on cross section paper for varied
proportions and select the most pleasing in accordance with
rules.

(_c_) Translate the selected sketch into a scale or full size
drawing and add additional views to complete the requirements
of a working drawing. Add additional structural elements: legs,
rails, etc.

(_d_) For shop purposes, enlarge a scale drawing to full size,
dimension and otherwise prepare it for actual use. See Figure
102a, page 68, for character of this change.

(_e_) Construct the project.

SUGGESTED PROBLEMS

Design a fire screen with two horizontal and three vertical
major subdivisions.

Design a bookcase 4 feet 2 inches high with three horizontal
and two vertical major subdivisions.

SUMMARY OF RULES

Rule 3a. _If the primary mass is divided into two vertical
divisions, the divisions should be equal in area and similar in
form._

Rule 3b. _If the primary mass is divided into three vertical
divisions, the center division should be the larger, with the
remaining divisions of equal size._

Rule 3c. _In elementary problems, if more than three vertical
divisions are required, they should be so grouped as to analyze
into Rules 3a and 3b, or be exactly similar._

REVIEW QUESTIONS

1. What is the nature and need of vertical space divisions?

2. State the rule governing the use of two vertical space
divisions and give illustrations in wood, clay, and metal.

3. Give the rule relating to the use of three vertical space
divisions and furnish illustrations in wood, clay, and metal.

4. What is the treatment of more than three vertical divisions?
Why?