1. PowerPoint Presentation
Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois 1

2. Chapter 13
The Floor Plan 2

3. The Floor Plan
The floor plan is the heart of a set of construction drawings.
All tradeworkers refer to the floor plan.
Usually the first drawing completed.
The basis for many other plans.
Actually a section drawing.
Keep the floor plan clean and uncluttered. 3

4. Required Information
Information that should be included on the floor plan includes:
Location of Exterior and interior walls.
Size and location of windows and doors.
Location of Stairs.
Room names.
Materials used (Material symbols).
Location and size dimensions.
(continued) 4

5. Required Information Drawing scale. Built-in cabinets and appliances.
Location of Permanent fixtures.
Location of Fireplaces and Chimneys.
Walks, patios, and decks.
Related structures are frequently included. 5

6. Location and Size of Walls
Walls should be drawn actual thickness.
Since the floor plan is a section drawing hatch patterns (symbols) should be used to indicate materials. 6

7. Wall Material Symbols 7

8. Windows and Doors
Use a centerline to locate the opening for windows and doors in frame walls.
Dimension to the side of the opening in a masonry wall.
Openings for windows are sash width.
Openings for doors are actual width.
Door swing should be indicated. 8

9. Window and Door Location
Windows and doors should be located in a frame wall using a centerline. Door swing is also shown. 9

10. Stairs and Fireplaces
Only information about the basic size and location of stairs and chimneys needs to be recorded on the floor plan.
For stairs, show direction of flight, number of risers, and width of stairs.
For a chimney, show basic depth and width, opening design, and location. 10

11. Stairs on Floor Plan
Information about a set of stairs that is usually included on the floor plan. 11

12. Walks, Patios, and Decks
Several outside features are usually included on the floor plan.
Walks, patios, and decks are examples.
Indicate size and materials on the plan.
Consider these elements as part of the total plan. 12

13. Room Names Room names help communicate the plan to others.
Room names should be 3/16" high.
Room names should be in the center of the room. 13

14. Material Symbols
Material symbols or material hatch patterns are used to denote each material.
Use a material symbol whenever the material should be identified.
If the symbol is not a standard one, identify it. 14

15. Material Symbols 15

16. Material Symbols 16

17. Dimensioning
Dimensions on a floor plan show size and location of the features.
Proper placement of dimensions requires good judgment.
Locate dimensions where one would logically look for them.
In architectural drafting, dimension lines are continuous lines with the dimension figure placed above the line. 17

18. Dimensioning
Dimension figures are always parallel to the dimension line (aligned).
Be consistent with the type of termination symbol used for dimension lines.
Move dimension lines out from drawing.
Space dimension lines 1/4" or 3/8" apart.
Make leaders no longer than 2". 18

19. Dimensioning Dimensions are recorded in feet and inches.
Feet and inch marks may be omitted.
Dimensions less than 1' are usually indicated as 1/2", 2", 6", etc.
Dimension interior frame walls to the center of the wall.
Dimension exterior frame walls to the outside of the stud wall. 19

20. Dimensioning
Recommended method of dimensioning frame wall construction. 20

21. Dimensioning
Solid masonry walls (cast concrete, block, brick, or stone) are usually dimensioned as shown. 21

22. Dimensioning
Brick veneer walls are dimensioned to the outside of the stud wall.
Solid masonry walls are dimensioned to the outside of the wall.
Overall dimensions are needed to provide the total length and width of the structure or major parts of the structure. 22

23. Dimensioning
Add up partial dimensions to be sure they equal the overall dimensions.
Notes are often necessary to present information that cannot be represented by dimensions or symbols.
Notes should be read from the bottom of the sheet. 23

24. Scale and Sheet Identification
Residential floor plans are usually drawn at 1/4" = 1'-0".
C-size paper is generally large enough.
Number the sheets in the package.
Sheet 1 of 6, 2 of 6, etc., works well.
Sheet numbers should be placed in the lower right-hand corner. 24