A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall.
Footing depth for concrete wall.
Your concrete footing should be a little wider than your mortared stone wall.
Ten inches is better and twelve inches is highly desirable.
If your wall will be 18 inches thick you should make your concrete footing 24 inches thick.
These considerations have some variability to allow for conditional adjustments such as the need to reach down to the frost line.
Pier and column footing requirements.
Eight inches is the minimum thickness for a footing.
The depth of each course can be one brick or multiples of brick thicknesses.
The footing dimensions will largely be determined by the size of the wall.
Your footing should extend below the frost line.
You can leave the concrete footing a few inches below grade to make sure it does not show when the wall is finished.
The spread footing should be no less than 6 inches thick.
The steel has to extend 3 feet into the main wall and 3 feet into the shorter wall beyond the point where the footing starts figure 11.
Find nearby slab and foundation contractorsto help with your footings.
The minimum reinforced concrete footing thickness will be 6 inches or 1 1 2 times the length of the footing projection from the foundation wall whichever is greater.
Footing depth can be confused with the thickness of a footing.
For masonry or concrete construction the minimum foundation wall will be 6 inches.
Discontinuous footings work fine for concrete walls which can be reinforced to take the loads.
The width at the base shall not be less than the width of the supported wall plus 30 cm.
It should project on both sides no less than 2 inches.
The base of the footing wall rests on a plain concrete footing which projects 10 to 15 cm beyond the last brick offset as shown in fig.
The depth of the footing in the ground depends on.
Footing thickness 8 to 12 inches footing depth varies based on frost line and soil strength some footings can be shallow while other must be deep concrete calculator figure out how much concrete you ll need for your footings.
Determine the planned wall s height and width.
If your wall is a load bearing wall your footing must be as deep as the wall is wide and the width of the footing should be twice as wide as the wall.