Bldg code requirements vary with locale.
If you mean stepped footings this is used if the structure is being built on a hill / slope. I stay in Scotland some of terms in construction can be different
in texas is about 5 dollars per cubic foot plus labor last time i did it it was it was 600 dollar for a 30 feet long 12in width and 12in deep footing.
The measurement is taken from the point above grade at which height the foundation will be at completion, taking into account the type of foundation material and the frost line, and the depth of the crawl space or basement, if any.
Answer: 200 meters deep = 656.167 feet deep.
2 feet deep
It is recommended that footings in the Wisconsin area be 48" for most buildings. This is because of the deep frost that can occur in harsh Wisconsin winters.
Footings, the concrete pads upon which foundation walls are built, must be located beneath the frost line in order to prevent a building from heaving when the ground freezes. If the site is sloped maintaining a constant elevation for the footings would either cause the footings to be above the frost line or significantly deeper than the frost line at one end of the building. Stepping the footings enables them to follow the slope of the site and remain below the frost line without going too deep under the ground. It allows the foundation wall heights to be minimized because the footings are kept as close to the surface as possible.
B/3
Footings will differ based upon the type of project. Most footings, if building a deck for example, should be about six feet apart.
The usual formula is this; for every foot above ground you put 1/2 foot in the ground.
It is a foot to the second power
Isolated footings are constructed invidually & Mat foundation is making of mat and connecting all footings with this mat
If you mean stepped footings this is used if the structure is being built on a hill / slope. I stay in Scotland some of terms in construction can be different
in texas is about 5 dollars per cubic foot plus labor last time i did it it was it was 600 dollar for a 30 feet long 12in width and 12in deep footing.
foundation reinforcement
connecting between footings
A well-constructed deck must have proper footings in order to be stable and secure. Make sure to dig your footing holes deep enough so that they are on undisturbed soil and sit below the deepest point of frost penetration. Once the holes are dug, line the bottoms with gravel for drainage, then pour concrete into the holes. The footing depth in inches divided by eight will tell you how many bags of concrete mix you need.