The exact depth of the.
How much concrete do i need for a retaining wall.
The depth of the concrete is always something you need to interpret based on the height and width of the wall.
To figure out how many rows you ll need divide the ideal wall height by the height of the block.
Just enter the dimensions of your wall project and the concrete block calculator will figure out how many blocks are needed.
So volume of retaining wall volume of base slab volume of stem.
Volume of base slab l x b x h 10 x 3 x 0 2 6 m.
For example if the desired wall height is 6 feet the wall should be embedded below grade by 7 8 inches.
Consider getting several professional estimates to get the best labor cost and find the right company for your project.
A poured concrete footing for concrete block or brick walls should be at least twice as wide as the planned wall.
To calculate the volume of retaining wall we need to calculate the volume of retaining wall.
Make sure to account for the first row being half buried.
As an example one 4sons concrete customer wanted 20 yards of driveway demolished and 8 yards of retaining wall built in their garden.
The footing dimensions will largely be determined by the size of the wall.
If your wall is to a be a single brick wide and only 500mm high then an 8 inch conversion 8 x 2 54cm 20 3cm wide and 6 inch deep click to convert is more than adequate but adequate provision is needed depending on requirements.
The spacing between the stakes will depend on how thick your retaining wall will be and the thickness of the wooden planks used as the forms.
If you re building a retaining wall then check out our retaining wall calculator.
Determine the planned wall s height and width.
For a stacked block retaining wall that s no higher than four feet a trench filled with three inches of crushed rock will help keep the wall from shifting and settling.
The footing should be at least as thick vertically as the wall s planned width.
For example a 10 x 10 wall using a 16 x 8 x 8 block will require an estimated 120 blocks and cost about 185 for material.
For example if you are pouring a retaining wall that will be 12 inches thick and will use wooden planks that are 1 1 2 inches thick for your forms you ll need to space the stakes about 15 inches apart.
For a recycled concrete retaining wall 4sons concrete typically charges 12 to 20 per square foot compared to their typical fee of 23 to 28 per square foot.
Start by measuring the wall width and height.
To estimate how many blocks you ll need per row divide the total length of the wall by the length of the block.