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Plot Plans

Chapter 8

Definition and Purpose

A plot plan is a plan view drawing which show the site and
location of the building on the property.




Definition and Purpose


Plot plan shows:


Page
154

Property Lines

Property lines define the site boundaries


The length and bearing of each line must be identified on the
plot plan


Measured with an engineers scale to 1/100’


Bearing angles are recorded in degrees and minutes (seconds)


S 63
°

W


Property Lines


Property Corners


Identified with a special symbol


Benchmark


Where the property corner begins and ends


Contour Lines


A contour is a line connecting points which have the same
elevation.


Contour lines help to describe the topography of the site by
depicting shape and elevation of the land.


Survey uses a mean sea level.


Home construction
-

relative elevations are sufficient.

Contour Lines


Page 156

Topographical Features


Represented by symbols


non standard symbols should appear in the legend of the
drawing


Topographical Drawing Color


Black
-

lettering the works of man (roads, houses)


Brown
-

land forms (contour lines)


Blue
-

water features (lake, stream, marsh)


Green
-

vegetation (trees)



Location of Structure on Site


Analyze site to determine best location of house on site


contour


trees


view


surrounding houses


code restrictions


Style of house


Solar orientation


Winds


Placement of septic

Location of Structure on Site


Three methods of drawing house on site

1. Lay out the outside of the exterior walls omitting all interior
walls and roof.


Shade or crosshatch space covered by house

Location of Structure on Site


Three methods of drawing house on site



2. Draw the exterior walls as hidden lines with the roof
shown as solid lines

Location of Structure on Site


Three methods of drawing house on site


3. Show all exterior wall thickened with all interior walls,
windows and doors omitted



* House must be dimensioned on all three types of drawings

Procedure for Drawing Plot Plan


Page 160

Landscape Plot Plans


Designed to show the type and placement of trees, shrubs,
flowers, gardens and pools on the site


Plans the total setting for the home


Symbols are used to represent various types of trees and
plants.

Footings, Foundations and
Conrete


Chapter 9

Footings, Foundations & Concrete


Staking out house location


1. Locate each corner of the house by laying off the
distances indicated on the plot plan.


2. The position of all corners should be checked for
accuracy by diagonal measurement.


3. A control point is needed to determine the depth
of excavation and foundation wall height.



Excavation







For footings and foundations the top soil is usually
removed and saved for final grading.


Excavation of footings should extend a minimum of 6
inches, into undisturbed earth.


Excavation of footings must also be extend down to a
minimum of 6 inches below the average maximum frost
penetration depth.

Excavation



Remove the top soil.



Excavation must be below frost line for footing



Excavation must be large enough for work space and
foundation drains.



Footings



Increase the support capacity of the foundation wall by
spreading the load over a large area.


Footing thickness is equal to the foundation wall thickness
and footing width is twice the wall thickness.

Foundation Walls


T
-

is the most common type of foundation.


Slab foundation is an extension of a slab floor.


Pier and Post foundations serve as an auxiliary foundation to
support long spans.

Basement Walls


Basement walls are controlled by local building codes.

Beams and girders are used to support floor joist.

Lintels are a horizontal structural member that supports the
load over an opening such as a door or a window.


Concrete


Concrete is a result of combining

cement, sand, aggregate
and water.


Cement is composed of a mixture of lime, silica, alumina,
iron components

The Foundation
Plan

Chapter 10

The Foundation Plan



Definition and Purpose


plan view drawing in section which shows the location and size
of footings, piers columns, foundation walls, and supporting
beams.


The Foundation Plan Includes:


Footings for foundation walls, piers, columns


Foundation walls


Piers and columns


Dwarf Walls


Partition walls, doors and bath fixtures


Openings in foundation wall such as windows, doors and
vents

The Foundation Plan Includes:


Beams and pilasters


Direction, size and spacing of floor joists


Drains, sump


Details of foundation and footing construction


Complete dimensions and notes


Scale of drawing

The Foundation Plan


Purpose


The foundation plan is prepared primarily for the excavator,
masons and cement workers who build the foundation

The Foundation Plan



Preliminary steps to drawing a foundation plan


examine the floor plan to determine the type of exterior walls


examine plot plan to anticipate the need for stepped footings
and retaining walls


Determine the size of footings and foundation walls required
from information available.

Drawing The Foundation Plan

1. Select Scale

2. Locate outline on paper

3. Draw the foundation walls, piers, and

columns and
foundation for chimney

4. Indicate breaks in found. Wall for


windows, doors,
etc

5. Layout and draw footings (Hidden)

Drawing The Foundation Plan

6. Draw footings for piers

7. Draw footings for fireplace and chimney

8. Locate the supporting beam

9. Show size, spacing and direction of the

floor joists.

10. Identify the location of sections

11. Draw necessary sections and



dimensions

Drawing The Foundation Plan

12. Determine the location of dimensions

needed to show
the size of all



aspects of the foundation

13. Draw the dimensions and dim. lines

14. Letter and notes

15. Shade the foundation wall drawing


with
proper symbols.


Drawing The Foundation Plan

16. Add the title block , scale and name


of
drawing in the proper location

17. Check drawing to be sure you have


included
all necessary info.

The Basement/Foundation Plan


Basements are usually included in cold climates. Cheaper to
build.


The basement plan is a combination floor and foundation
plan


Includes information commonly shown on the foundation plan
and at the same time show interior walls, stairs, windows and
doors.

Procedures For Drawing a Basement
Plan

1. Select Scale

2. Draw the foundation walls, piers, and

columns and
foundation for chimney

3. Draw footings for foundation

4. Locate and draw the beam and



supports
or bearings wall partition

5. Design room layout in basement area

and darken in the
lines


Procedures For Drawing a Basement
Plan

6. Indicate breaks in basement walls

7. Locate and draw stairs

8. Show size, spacing and direction fo


floor
joists

9. Identify the location of sections

10. Draw necessary sections

11. Locate and draw bath fixtures,



furnace,
hot water heater, etc.

Procedures For Drawing a Basement
Plan

12. Determine the location of dimensions

13. Dimension

14. Letter any notes

15. Show electrical switches, outlets and

fixtures

16. Shade the foundation walls with


symbols


Procedures For Drawing a Basement
Plan

17. Add the title block, scale and name of drawing

18. Check drawing to be sure you have I

included all
necessary information