Which scale is commonly used for civil drawings?

The scale commonly used for civil drawings is 1"=20'. This scale allows for a clear representation of large areas or structures while maintaining sufficient detail for practical applications. Civil engineering plans often encompass extensive elements such as roadways, drainage systems, and large building layouts. A scale of 1"=20' is effective in ensuring that all necessary features can be included while still being legible and easy to interpret.

Choosing a larger scale, such as 1"=10' or 1"=30', may lead to overcrowded drawings or details that are too large for the context. Conversely, a scale like 1"=50' may result in too much information being lost and lack clarity when depicting intricate features within the project. The 1"=20' scale strikes a practical balance, offering enough detail for construction and design purposes while still making it feasible to represent larger layouts.