Architects Scale Rulers for Designing & Reading Architectural Drawings

These architects’ scales are imperial based on foot/inch dimensions with graduations for the design and reading of architectural drawings. The triangular rulers are available in 4, 6, 12, 18, 24, & 36 inch lengths with the graduations of: 3/32, 3/16, 1/8, ¼, ½, 1, 3/8, ¾, 1 ½, 3” to the foot; with one edge calibrated to the 16ths. Scales available in high impact plastic, bamboo core, and aluminum

Help selecting a scale to use:
Floor plans are usually drawn in 1/4" = 1'-0"
Larger plans a scale of 1/8" = 1'-0" may be used.
A small plan or a single room drawing, select a scale of 3/8" = 1'-0", 1/2" = 1'-0", 3/4" = 1'-0", or 1" = 1'-0" may be used to fit the size of your drawing format.

There are several flat rulers progressively numbered graduations 1/4, 1/8, 1/16, and 1/32nd for reading certain architectural drawings.


4" Mini Aluminum Architects Scale by Alvin
Code: 21413
MFG Part #: 30ATS
Regular price: $13.41
Sale price: $10.32
4" Mini Aluminum Architects Scale by Alvin 21413
12" Black Aluminum Architectural Scale
Code: 20096
MFG Part #: 98/ARC
Regular price: $28.26
Sale price: $20.19
12" Black Aluminum Architectural Scale 20096
6" Hi Impact Plastic Mini Architectural Scale Model 610A
Code: 20095
MFG Part #: 610A
Regular price: $7.86
Sale price: $5.61
6" Hi Impact Plastic Mini Architectural Scale Model 610A 20095
12" Hi Impact Plastic Architectural Scale Model 240P
Code: 20092
MFG Part #: 240P
Regular price: $13.20
Sale price: $10.15
12" Hi Impact Plastic Architectural Scale Model 240P 20092
12" Black Plastic Architectural Scale Model 240BP
Code: 20093
MFG Part #: 240BP
Regular price: $13.20
Sale price: $10.15
12" Black Plastic Architectural Scale Model 240BP 20093
Lufkin W393 5' Ideal Estimator's Pocket Architects Tape 1/8” & 1/4” to Foot Scale
Code: 21138
MFG Part #: W393
1 - 9 pieces
$29.09 ea.
10 + pieces
$27.28 ea.
Lufkin W393 5' Ideal Estimator's Pocket Architects Tape 1/8” & 1/4” to Foot Scale 21138
Drafting Fan Scale has Architects, Engineers & Metric Graduations
Code: 21878
MFG Part #: 3699
Regular price: $18.95
Sale price: $12.19
Drafting Fan Scale has Architects, Engineers & Metric Graduations 21878
6" 266P Architects Scale Ruler 1/8", 1/4", 1/2", 1", 1 1/2", 3" to foot 4 Bevel Scale
Code: 20082
MFG Part #: 266P
Regular price: $8.94
Sale price: $6.39
6" 266P Architects Scale Ruler 1/8", 1/4", 1/2", 1", 1 1/2", 3" to foot 4 Bevel Scale 20082
12" 260P Architects Scale Ruler 1/8", 1/4", 1/2", 1", 1 1/2", 3" to foot 4 Bevel Scale
Code: 20083
MFG Part #: 260P
Regular price: $14.68
Sale price: $11.29
12" 260P Architects Scale Ruler 1/8", 1/4", 1/2", 1", 1 1/2", 3" to foot 4 Bevel Scale 20083
6" 310A Architects Scale Ruler 1/8", 1/4", 1/2", 1", 1 1/2", 3" to foot 4 Bevel Scale
Code: 20087
MFG Part #: 310A
Regular price: $6.62
Sale price: $4.73
6" 310A Architects Scale Ruler 1/8", 1/4", 1/2", 1", 1 1/2", 3" to foot 4 Bevel Scale 20087
12" Aluminum 4-Bevel Flat Architects Scale Double Numbered by Alumicolor
Code: 21416
MFG Part #: 3136-1
Regular price: $14.25
Sale price: $9.86
12" Aluminum 4-Bevel Flat Architects Scale Double Numbered by Alumicolor 21416

Common Architectural Scale & Use

  • Floor plans are usually drawn in 1/4" = 1'-0"
  • Larger plans a scale of 1/8" = 1'-0" may be used.
  • A small plan or a single room drawing, select a scale of 3/8" = 1'-0", 1/2" = 1'-0", 3/4" = 1'-0", or 1" = 1'-0" may be used to fit the size of your drawing format.
  • There are several flat rulers progressively numbered graduations 1/4, 1/8, 1/16, and 1/32nd for reading certain architectural drawings.


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