carpentry 1 - Blueprint Views and Groups of Drawings Part A & B
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. What would you like to do?
What are 5 views that make up a set of drawings?
- 1. Plans (views from above and cutaway top views)
- 2. Elevations (front, rear & side views)
- 3. Building cross-sections (cutaway front, rear & side views)
- 4. Sections (enlarged cutaway views showing the construction of one of the building components)
- 5. Details (an enlarged targeted area of a building section)
Name 5 types of plans that show orthographic views.
- 1. survey
- 2. plot
- 3. landscape
- 4. site (a combination of survey, plot & landscape)
- 5. roof
Name 4 types of cutaway orthographic views on a set of plans.
- 1. Foundation
- 2. Floor
- 3. Reflective ceiling
- 4. Layout (truss & engineered floor systems)
At what height is the cutting plane line taken for most floor plans?
1800mm (6 ft) -- and must pass through all built-in items
In the kitchen what height is the cutting plane taken at?
1200mm (4 ft) -- placing it between lower and upper cabinets
What are exterior vertical orthographic views called?
Describe the difference between longitudinal and transverse sections.
- Longitudinal = Length
- Transverse = Width
What 2 things make up 'a section line'?
- 1. cutting plane
- 2. arrow head
What kind of detailed information about the building components and systems do sections show?
Detailed info about the components and construction of building systems
What are 'break lines'?
Show that the centre segment of the system has been removed?
What are 'detailed drawings'? (2 things)
- 1. clarity for specifically targeted areas from other drawings.
- 2. Correlation of the different elements of the building system
Where is the title of a section found in a section or detail indicator?
- Title of the section or detail is given above the line
- Page on which it can be found is shown below the line
What is 'a schedule'?
Table used to identify, describe and locate specific info about building components
What are 9 things included in architectural drawings?
- 1. Type of structure
- 2. Exterior styling and finishes
- 3. Building envelope
- 4. How interior is broken up into different spaces
- 5. Circulation routes
- 6. Locations/sizes of doors & windows
- 7. Types of interior finish & trim
- 8. Locations/extents of cabinets & millwork
- 9. Specialty items
Name 6 structural elements that would be detailed in structural drawings.
- 1. Foundation
- 2. Foundation walls
- 3. Structural framework
- 4. Size/spacing/grade/strength/type of material for structural members
- 5. Concrete reinforcement
- 6. Connections
What are 'shop drawings'?
- For building components that are manufactured OFF site, they stipulate the:
- 1. Layout
- 2. Opening sizes
- 3. Connections
- 4. Fastening and mounting heights
What type of plan would include: the legal description, lot numbers, block number & plan number?
On what type of plan would you find the 'geodetic elevation' and 'construction elevation' for the top of the main floor sub-floor?
Elevation plans: which walls can be distorted?
Walls that are not parallel to the view will be distorted
What scale are 'cross-sections' drawn at?
the same scale as the foundation, floor plans & elevations
Where are building section lines repeated?
On foundation and each of the floor plans at the same location
What is 'geodetic elevation'?
Elevation or height of a given point on land above sea level
What is 'invert elevation'?
The bottom of the pipe where it will actually be resting
How is the location of a main beam in the basement indicated on a foundation plan?
Because the elevation of the main beam is above the cutting plane, it is indicated with a phantom line -- a line drawn with a heavy centre line
List 8 things that may be included in a floor plan.
- 1. Exterior walls
- 2. Position and size of windows
- 3. Partitions and room layouts
- 4. Types/sizes/locations of doors
- 5. Extent of cabinets & millwork features
- 6. Types of appliances and plumbing fixtures
- 7. Positions & types of lights, switches & plugs
- 8. Location of registers/supply ducts/return air grills & ducts
When a window size (e.g. 1600 x 900H) what does the first number indicate?
What do the following letters indicate when found after a window dimension: A, C, SL
- A - awning
- C - casement
- SL - sliding
When viewing windows on a floor plan, what indicates that there may be a window schedule available?
Number or letter is encased by a circle, hexagon or diamond adjacent to the window
Do floor plans show the layout of framing members or how the partitions intersect?
No. It is YOUR responsibility to ensure it is up to code.
List 3 methods for determining the lengths of cabinets.
- 1. Calculating (using the wall dimensions)
- 2. Knowing the standard unit sizes of the different components
- 3. Referring to interior elevations
What info is given on a floor plan regarding a set of stairs? (2 things)
- 1. Direction arrow with abbreviation indicating whether the stairs go up or down from the floor
- 2. Number of risers required to reach next floor level
When a difference appears between drawings and shop drawings, which one should be followed?
Shop drawings -- specific to that product
What is a building's weight supported by?
The surrounding soil & buildings weight is transferred to the soil by structural footings or piles
Pad dimensions 760mm x 760mm x 255mm. What is the 3rd dimension?
Where are footings placed?
Below the frost line (foundation walls are set on top of the footings)
What is a 'pony wall'?
Extends the height of a wall from the foundation to the underside of the floor joist
What divides a crawl space and a basement?
A bearing wall
Who thinks you're cute?
What kind of foundation is used where no crawlspace or basement is required?
Grade beams and piles
What is the most referenced drawing in a set of blueprints?
Why can windows usually not be determined by the symbols used on plans?
Due to relatively small scale used for floor plans.
What is the letter following the dimensions of a window?
Reference to the type of window
What are the 7 types of windows (F, C, A, H, SL, SH, DH)
- 1. F - fixed
- 2. C - casement
- 3. A - awning
- 4. H - hopper (hinged on bottom)
- 5. SL - sliding (horizontal sliding)
- 6. SH - single hung (vertical sliding)
- 7. DH - double hung (bypassing vertical sliding)
What should you NEVER use to frame a windows rough opening?
Architectural drawing -- use supplier's shop drawing
What is the minimum an interior door can open?
What is the difference between a dashed-line and non-dashed line to indicate a door opening (without a door)
- Dashed line - archway
- Non-dashed line - opening extends from floor to ceiling
On a plan, what are the lower kitchen cabinets shown as?
On a plan, what are the upper kitchen cabinets shown as?
Describe the lines for a closet
- Front edge of closet shelf - solid line
- Closet rod below it - dashed line
The number of risers required is always ____ more than the number of treads indicated on the drawing.
How are roof beams shown?
Same way as beams are shown on foundation plans
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