Common Architectural Scales

Written by clayton browne Google
  • Share
  • Tweet
  • Share
  • Pin
  • Email
Common Architectural Scales
Architectural plans are drawn at a specific scale. (architects tools image by Chad McDermott from

A large part of an architect's job is to draw plans and/or make models of the buildings he or she is designing. All architectural plans are drawn. The models are constructed at a specific scale that depends on the size of the object to be constructed, the purposes of the plans or models and other factors. Common architectural scales range from a ratio of 1-to-4 to 1-to-128, rarely smaller, but occasionally larger.

Other People Are Reading

1-4 to 1-16 Ratios Architectural Scales

Ratios of 1-to-4 to 1-to-16 is the larger end of the commonly used architectural scales. Just imagine a drawing or a model of a typical family home at a 1-4 ratio scale; that is just too large. 1-4 ratio scale drawings would be more typical for small objects, such as birdhouses or dollhouses. 1-16 ratio scale drawings would be about the largest you would typically see for single family homes, and more often 1-36 to 1-48 ratios.

1-20 to 1-64 Ratios Archtectural Scales

This range represents the most commonly used architectural scales used for drawing of plans for single-family residences or smaller commercial buildings. Ratios of 1-to-48 or 1-to-50 is a very common architectural scale for this type of project. Note that the scale notation of 1/4-inch, for example, means 1/4-inch on the drawings equals 1 foot of the actual building, or 1-48 ratio scale.

1-96 to 1-128 Ratios Architectural Scales and Higher

Larger architectural scales in the range of 1-96 to 1-128 ratios are used for commercial projects, such as larger office buildings and factories. And, occasionally, even larger scales with a 1-500 ratio or greater are used for drawings or creating models of larger factory complexes or multi-neighbourhood real estate developments.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.