# Question: How many scales are on an architectural scale?

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The architect’s scale is used by architects and builders for obtaining measurements from scaled drawings of buildings and other structures. It is typically three-sided with 11 scales or flat with 4 scales. It is available in lengths ranging from 4″ to 36″ although 12″ models are most common.

## Is the scale 1/25 an architectural scale or an engineering scale?

Engineering scales are read left to right, and should have scales of 1:20, 1:25, 1:50, 1:75, 1:100 and 1:125. Architectural scales can be read both left to right, and right to left, and are likely to be labeled with 3/32, 3/16, 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1-1/2, 3 and 16 scales.

## How do you calculate scale?

To scale an object to a smaller size, you simply divide each dimension by the required scale factor. For example, if you would like to apply a scale factor of 1:6 and the length of the item is 60 cm, you simply divide 60 / 6 = 10 cm to get the new dimension.

## Why does an architectural scale have so many scales?

Because the scale of such drawings are often smaller than life-size, an architect’s scale features multiple units of length and proportional length increments. For accuracy and longevity, the material used should be dimensionally stable and durable.

## What is the most common architectural scale?

The 1/4 inch = 1 foot scale is the most common in the U.S. and is also referred to as 1/48 size because there are 48 units of 1/4 inch in 12 inches. Shown below are two different U.S. customary scales. The 1/4 inch scale on the left indicates that for every 0.25 inches measured there is 1 foot of real distance.

## What is the difference between an architect scale and an engineer scale?

Architect scales have numbers that run incrementally both from left to right and from right to left. A whole number or fraction to the left or right of the number line indicates the scale those numbers represent. Engineer scales have numbers that run incrementally from left to right.

## What does a 1/100 scale mean?

Ratio scales

If the scale of the plan is 1 : 100, this means the real measurements are 100 times longer than they are on the plan. So 1 cm on the plan represents a real length of 100 cm (1 metre)