1. Chapter 14
Floor-Plan Symbols

2. Other Floor Plan Symbols
Links for Chapter 14
Walls and Partitions
Stairs
Doors and Windows
Fireplaces
Cabinets and Fixtures
Other Floor Plan Symbols

3. Introduction
Symbols are used on floor plans to describe items that are associated with the home
Floor plan should be easy to read and uncluttered
See figure 14.2

4. Wall Symbols With CADD, walls are drawn to the exact thickness
Studs are vertical construction members used for framing walls
A 2 X 4 is actually 1 1/2” x 3 1/2”
A 2 X 6 is actually 1 1/2” x 5 1/2”

5. Walls and Partitions Draw exterior wood walls 6”
Draw exterior masonry walls with an additional 5” for a total of 9 1/2”
Draw partitions (interior walls) 4” thick
The soil stack wall should be drawn 8”; the soil stack is a vertical soil pipe carrying the discharge from the toilet fixture

6. Walls and Partitions What is drywall? What is gypsum?
Masonry veneer used on interior walls

7. Walls and Partitions 1/2 " S HEA THI NG 2X 4 ST UD EX TE RI OR W AL LWI TH M AS ON RY V EN EE R 1/
2" G YP SU IN LS 6 N DE D BO S ID ES
1" A IR PA CE
4" TY PI CA SI DI 2 X HE AT HI
5"
7" 9
4 1
/2"

8. Wall and Partitions
Walls are shaded so they stand out from the rest of the drawing
This is referred to as poché, is commonly done on the back of the drawing to avoid smudging and should be done last
Wall shading should be the last drafting task performed

9. Wall and Partitions
Partial walls are at least 36” above the floor and defined with a note
Guardrails are noted and at least 36” tall with no more than 4” between rails

10. Door Symbols
Exterior doors are drawn with sill on the outside about 1/16” away
Main door is usually 3’-0”
Other exterior doors are 2’-8”
Most doors are 6’-8” tall

11. Door Symbols Interior doors are drawn without a sill
Utility rooms 2’-8”
Bathrooms 2’-4” to 2’-6”
Other rooms 2’-6” to 2’8”
Closets 2’-0” to 2’-4”

12. Door Symbols ADA specifies that all doors be 36” wide
Pocket doors slide into the wall and require no swing
Bipass door is used on a closet and one door slides behind the other

13. Door Symbols Bifold doors are used for a closet and open independently
Double-entry or French doors is for a formal entryway

14. Door Symbols
Glass sliding doors save floor space and are for a more contemporary house
Double-acting doors are between a kitchen and eating area

15. Door Symbols Dutch doors open at the top and the bottom
Accordion doors are used for a closet

16. Door Symbols
Garage doors range from 8’-0” to 18’0” wide and 7’-0” high
The open position is shown as dashed lines

17. Window Symbols
The sill is drawn on both the inside and outside of the window
Windows range in size from 2’-0” to 12’-0” at intervals of 6”
Size of the window depends on its purpose and if it should open or not

18. Window Symbols
Casement windows are able to be opened 100 %

19. Window Symbols
Pictorial windows have two windows that slide vertically

20. Window Symbols
Awning windows are used in basements or below a fixed window

21. Window Symbols
Fixed windows are larger and do not open or close

22. Window Symbols
Bay windows extend beyond the wall and can extend from the floor to the ceiling or contain a bench

23. Window Symbols Garden windows are usually in a kitchen or utility room
Skylights add natural light and are drawn with dashed lines on the floor plan

24. Schedules
Schedules are used to describe items on the floor plan and include:
Manufacturer
Product name and model number
Type and color
Quantity and size
Rough opening

25. Schedules

26. Kitchens

27. Bathrooms

28. Utility Rooms

29. Wardrobe Closets

30. Stairs

31. Stairs Minimum stair width is 36” Tread depth should be 10” to 12”
Risers range between 4” and 7 1/4”
Stair angle should be between 30° and 35°
Landings should be equal to the width of the stairs

32. Stairs Clear height of 6’-8” is the minimum amount of headroom
Handrail should be between 34” and 36” above the stair nosing
Guardrails should be at least 36° and have openings no greater than 4”

33. Stair Design Formulas 2R + T = 24”-25” R + T = 17”-17 1/2”
R X T = 70” to 75”
R = Riser dimension
T = Tread dimension

34. Stair Floor Plan DN = Down, UP = Up, R = Risers
Rise is one tread and Run is one riser
Always one less run than rise
Stair length = tread length X number or runs
Landings are at least 36” x 36”

35. Stair Floor Plan

36. Fireplaces

37. Fireplaces Opening Opening Unit Width Height Depth 36 24 22 40 27 22

38. Fireplaces
Steel fireplaces are prefabricated and circulate air into the room
Vent-free gas fireplaces use ceramic logs to increase efficiency without mess and labor
A cleanout is a small door in the floor that allows ashes to be dumped into a hollow cavity.

39. Solid Fuel-Burning Appliances

40. Solid Fuel-Burning Appliances
Combustible floors must be protected
Walls must be adequately protected with a 7” airspace
A screened closable vent must be installed within 24” of the appliance
A catalytic converter may need to be installed if there are pollution requirements

41. Other Floor Plan Symbols
Hose Bibb - Outdoor water faucet
Concrete Slab - Used for garage floor, patio, and driveways

42. Other Floor Plan Symbols
Attic and Crawl Spaces - Access can be placed in a closet or hallway
Floor Drains - Used to accumulate water on a floor

43. Other Floor Plan Symbols
Cross-Section Symbols - Shows the location on the floor plan where a cross-section is taken