# What is the minimum depth for foundations?

Asked By: Nataniel Linderer | Last Updated: 17th January, 2020

Category:
business and finance
civil engineering industry

High VCP = 1.0 m

**minimum depth**, Medium VCP = 0.9 m**minimum depth**, Low VCP = 0.75m**minimum depth**. When excavating**foundations**, where there is no influence from trees or shrubs, should the**foundation depth**be measured from the finished, the original or the reduced ground level?Subsequently, one may also ask, what is the minimum depth of foundation?

1.50m

Similarly, how deep is the foundation of a 3 story building? **Foundation** walls **for three** (**3**) **story buildings** over 25' 0" in height shall be a minimum of twelve inches (12") in thickness.

Beside above, how deep should single storey foundations be?

For a single storey building strip foundations will typically be **450mm** wide and at least **200mm** deep, and for two storeys 600mm wide and **200mm** deep.

What determines the depth of a foundation?

Many factors affects the **depth** of **foundation**. such as type of soil, ground water table, loads from structure, bearing capacity and density of soil and other factors. The minimum **depth** of **foundation** is calculated by Rankine's formula when the bearing capacity of soil is known by soil investigation report.