how to interpret blueprints: reading an architect’s scale & understanding the alphabet of...
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![Page 1: How to Interpret Blueprints: Reading an Architect’s Scale & Understanding the Alphabet of Lines Interior Design II: Objective 5.02](https://reader035.vdocuments.mx/reader035/viewer/2022062309/5697bfc81a28abf838ca815e/html5/thumbnails/1.jpg)
How to Interpret Blueprints: Reading an Architect’s Scale &
Understanding the Alphabet of Lines
Interior Design II: Objective 5.02
![Page 2: How to Interpret Blueprints: Reading an Architect’s Scale & Understanding the Alphabet of Lines Interior Design II: Objective 5.02](https://reader035.vdocuments.mx/reader035/viewer/2022062309/5697bfc81a28abf838ca815e/html5/thumbnails/2.jpg)
What is an Architect’s scale?• A triangular shaped instrument used
for making or measuring scaled drawings such as blueprints or floor plans.
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• The scale can be read from left to right and right to left.
• 1/8” scale would be read from left to right and the ¼” scale would be read from right to left.
What is an Architect’s scale?
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6
84
4
88
2
92
0
1/480
4
44
8
42 40 38
1/8
46
8
0 12
The left side begins with 1/8" scale ….
… and the right side begins with 1/4" scale
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6
84
4
88
2
92
0
1/480
4
44
8
42 40 38
1/8
46
8
0 12
The left side begins with 1/8" scale ….
… and the right side begins with 1/4" scale
Look at the 1/8” scale and read from left to right. The upper numbers represent feet.
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6
84
4
88
2
92
0
1/480
4
44
8
42 40 38
1/8
46
8
0 12
The left side begins with 1/8" scale ….
… and the right side begins with 1/4" scale
At 1/4” scale, read from right to left following the lower numbers
Look at the 1/4” scale and read from right to left. The lower numbers represent feet.
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What does “drawn to scale” mean?
• On a scaled drawing, a small measurement is used to represent a large measurement.
• For example, one-fourth inch (¼”) on the plan may represent one foot (1’) in the real world.
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• Floor plans for residential structures are usually drawn at ¼” = 1’.
• Commercial buildings may be drawn at 1/8” = 1’ if they are too large to fit on the desired sheet size at ¼” = 1’.
What does “drawn to scale” mean?
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Step 1Determine the drawing scale.
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Step 1Determine the drawing scale.
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Step 1Determine the drawing scale.
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Step 2Find the matching number on the architect’s scale.
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Step 3Place the scale on the print. Place the mark above the zero at the beginning of the line to be measured.
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Step 4 Use the scale to draw
• To draw your own prints, determine the length of the object to be drawn, then scale it down accordingly using the architect’s scale.
• For example, using the 1/4”= 1’ example, a wall 20 feet in length would become 20/4 or 5 inches on the blueprint.
![Page 15: How to Interpret Blueprints: Reading an Architect’s Scale & Understanding the Alphabet of Lines Interior Design II: Objective 5.02](https://reader035.vdocuments.mx/reader035/viewer/2022062309/5697bfc81a28abf838ca815e/html5/thumbnails/15.jpg)
Example: The Length of a Work Table
Find the “0” point on the ¼ scale …
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1/480
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Align it with the left corner of the table top
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Example: The Length of a Work Table
Plan View
Looking from Right to Left
along the scale, note that the
table is “6” units or 6 feet long.
6
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4
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92
0
1/480
8
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Example: Now measuring the height of the table
The table is somewhere between 2 ½
and 3 feet high …Can we be
more precise?
4
88
2
92
0
1/4
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Example: Worktable Height
Slide the scale down so that the
nearest whole foot measure
(2’) is aligned with the
bottom of the table.
4
88
2
92
0
1/4
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Example: Worktable Height
Then read the area “above” the “0” … a distance of about 9” … so the table would
be 2’ plus 9” high, or 33”
4
88
2
92
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1/4
9”
2’
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Now it is your turn!