14

Objectives
• Identify the primary features included in a foundation plan.
• Discuss the differences between a foundation plan and a basement plan.
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Objectives
• Design and draw a foundation plan for a typical residential structure using traditional or CADD methods.
• Design and draw a basement plan for a typical residential structure using traditional or CADD methods.
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Foundation Plan
• Foundation plan
– Plan view drawing in section
– Location and size of footings, piers, columns, foundation walls, beams, pilasters
– Usually drawn after the floor plan and elevations have been roughed out
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Foundation Plan
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Basement Plan
• Basements
– Popular where frost penetration is several feet deep
– Provide usable space at less cost
• Basement plan
– Combination foundation and floor plan
– Required for a split-level house
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Basement/Foundation Plan
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Employability
• Time management
– Understand, meet or beat deadlines
– Complete work accurately and precisely
– Use employer’s time management techniques
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Preparing to Draw a Foundation or
Basement Plan
• Study information on the preliminary floor plan, plot plan, and elevations
• Use the floor plan as an underlay
• Determine type and size of exterior walls
– Stud wall frame
– Stud wall with brick veneer and brick ledge
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Preparing to Draw a Foundation or
Basement Plan
• Examine elevations and plot plan
– Need for stepped footings or retaining walls
– Identify grade problems
• Determine size of footings and foundation
• Check soil bearing capacity
• Refer to local building codes
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Traditional Drawing Techniques
• Steps for drawing a foundation plan and a basement plan are similar
– Drawing techniques are the same for both
– More information and additional steps are required for a basement plan
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Manual Drafting: Foundation Plan
1. Select scale (usually 1/4" = 1'-0")
2. Locate outline of foundation walls
3. Draw foundation walls, piers, and pilasters (posts)
4. Indicate breaks in foundation wall
5. Lay out and draw wall footings
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Manual Drafting: Foundation Plan
6. Draw footings for piers and columns (posts)
7. Draw footings for fireplace and chimney
8. Locate and draw supporting beam (if required)
9. Show size, spacing, and direction of joists or trusses
10. Identify location of section details
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Manual Drafting: Foundation Plan
11. Add dimensions to show size of all aspects of foundation
12. Letter any necessary notes
13. Add proper material symbols
14. Add title block, scale, and drawing name
15. Check drawing for accuracy and completeness
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Green Architecture
• Green foundations
– Fly ash in concrete
– Pressure-treated lumber
– Check local building codes
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Manual Drafting: Basement Plan
1. Select scale (usually 1/4" = 1'-0")
2. Draw exterior foundation
3. Draw footings for walls, chimney, fireplace, piers and columns (posts)
4. Locate and draw the beam and supports or bearing wall partition(s)
5. Design room layout in basement area, darken lines
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Manual Drafting: Basement Plan
6. Indicate breaks in walls for windows, doors
7. Locate and draw stairs
8. Show size, spacing, direction of floor joist or trusses
9. Identify location of sections required to provide additional information
10. Locate and draw bath fixtures, furnace, water heater, storage tank, water softener, sump, floor drains
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Manual Drafting: Basement Plan
11. Add dimensions to show all features
12. Letter any necessary notes
13. Show electrical (if required)
14. Add proper material symbols
15. Add title block, scale, and drawing name
16. Check drawing for accuracy and completeness
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

Partially Completed Basement Plan
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

CADD Drawing Techniques
• Drawing is created at full scale, 1'- 0" = 1'- 0", or
1:1
• Appropriate scale is applied when drawing is plotted
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

CADD: Foundation or Basement Plan
1. Make copy of floor plan on new layer
2. Draw outside line of foundation walls, delete outside line of floor plan wall if they do not coincide
3. Draw all footings
4. Draw stairs, interior walls, windows, doors for basement plan
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

CADD: Foundation or Basement Plan
5. Draw interior walls, insert door and window symbols into plan
6. Dimension plan
7. Insert symbols for appliances, fixtures, and furnace
8. Add cutting plane symbols where required
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.

CADD: Foundation or Basement Plan
9. Label room name and sizes
10. Add scale and title to foundation plan layer
11. Look over plan for completeness
© Goodheart-Willcox Co., Inc.
Permission granted to reproduce for educational use only.