1. Understanding Blueprints

2. Objectives
Demonstrate the ability to measure with an architectural scale ruler
List the various types of plans or views represented in a set of blueprints
Discuss the information represented on various pages within a set of blueprints
Identify the sizes of objects on a drawing using the dimensions given and using a scale.
Interpret the various lines, symbols and notations used on drawings.

3. Reading a Architects Scale
PDF Scale printout
How to use a Scale Ruler Video

4. ¾” Scale 1 Inch 1 Foot 1” 2” 3” 4” 5” 6” 7” 8” 9” 10” 11” 28 2 26 16”
12” = 1’ 0” 1’

5. The Plans Plot Plan Foundation / basement plan Elevation Plans
Floor plans
Section views

6. Plot Plan Shows the location of all the structures on a given site
The drawing simulates a view looking down from a considerable height
It is made at a small scale because of the relatively large area it represents
The plot plan shows information about the lot, such as the laction of the building, wals, and driveways. The drawing simulates a view looking down from a considerable height. It is made at a small scale because of the relatively large area it represents.

7. Plot Plan Example

8. Plot Plan Example

9. Foundation / basement plan
Shows footing placement and size
Shows foundation wall placement and size
A mistake in reading the foundation plan will affect the whole structure.
The foundation plan is drawn at the same scale as the floor plan.
A mistake in reading the foundation plan will affect the whole structure.

12. Floor plans Show size and outline of a specific story of the building
Show location and size of walls, windows, doors, and stairs
Locations of fixtures for plumbing, electrical, and HVAC may also be shown here
Separate drawings specifically for electricians, plumbers, etc may also be available
Schedules for specific information on doors, windows, plumbing and electrical fixtures will be available to supplement the info on the floor plan

14. Section Views A cut-a-way of a section of the home
Shows information that can’t be seen from a view above

16. Elevation View
Show what the building should look like when construction is completed
Shown from a normal standing position
Showing no depth
Tell locations of windows, doors, types of wall finishes, exterior trim, location of exterior cooling and heating equipment, and other vital information
Shown for each face of the building (front side, left side, right side, and rear)

17. Elevation View

19. Understanding the Lines
Object lines – are lines that outline the object being viewed
Hidden lines – are lines that used to indicates objects not visible
Centerlines – are indicated by fine long dash then a short dash line and so on
Break line – is line used to shorten the over length of a drawing (can only be used if there is no change taking place)
Dimension line – is a fine solid line, it is terminated by arrows at each end
Extensions lines – are fine solid lines projecting from an object to show the extent of a dimension

20. And will lead you to something like this on another page
Section lines – identifies where the cut-away section of the house is cut-away from
And will lead you to something like this on another page

21. Object lines – are lines that outline the object being viewed
Hidden lines – are lines that used to indicates objects not visible
Centerlines – are indicated by fine long dash then a short dash line and so on
Break line – is line used to shorten the over length of a drawing (can only be used if there is no change taking place)
Dimension line – is a fine solid line, it is terminated by arrows at each end
Extensions lines – are fine solid lines projecting from an object to show the extent of a dimension

24. Understanding symbols
Since plans are drawn to scale symbols are used in place of actual appearances
Architects use short-cut symbols called conventional representations for everything from wood to glass

25. Basic Widow Symbols

26. Basic Door Symbols

27. Schedules Available for various ordering purposes
Doors, windows, plumbing and electrical fixtures, HVAC components, etc

28. Review Name the different plans used during the building process?
Which of the dimensions below would be found on a blueprint?
a) 3’ b) 3 ft. c) 3’-0” d) 36”
3. If you need information about the footings, which plan would you need?
4. If you need to know information about the exterior look and finishes of the house, what plan would you need?
5. If you need to see a cut-away of a house what type of plan would you need?
6. Residential plans are usually drawn to a scale of ____in. = ft.____in
7. Explain the purpose of a window and door schedule.
Plot plan, foundation, floor plan, and detail plans (elevation, elevation, floor ceiling and roof plans, framing plans, window and door schedules)
C is the correct answer