How To Build A Footing For A Concrete Block Wall
Pour the concrete to the top of the footer.
How to build a footing for a concrete block wall. Always check local building codes for construction requirements in your area. Set your footings 2 feet 0 61 m 60 96 cm across. Height vertical thickness of the concrete footing. Block would require a 16 in.
This creates 4 straight lines 1 for each side of your wall. Use an iron rake to push the concrete around as necessary. It s best to pour the concrete footings thick when building mortared stone walls. To construct a block wall you need to establish a solid footing that is a minimum of twice the width of the concrete block.
Tie string from stake to stake around the perimeter of the area. Align the 2 inch wide by 10 inch long 5 08 cm wide by 25 4 cm long boards to build the forms for your footings. If concrete is not being used to build the footing as is common for drystacked stone walls and very short walls the footing can simply consist of about 6 inches of compacted base material like angular sharp edged gravel. Top this with 1 inch of coarse sand or small gravel before constructing the wall proper.
If you re building a really big wall pour them even thicker taller because the concrete footing will need to support more weight. Add 2 feet 0 61 m 60 96 cm on either side. This properly spaces the form work and allows you the space you need to lay your foundation. Order the concrete from a redi mix company or order bags of dry concrete and mix it on site.
Prepare the concrete footing where the cinder block wall will sit. Specifically you can make them at least 12 inches in height. What type of footing is required for a concrete block wall. Start the concrete footing by digging the area of the wall a few inches below the frost line the maximum depth in the ground below which the soil does not freeze during the winter consult a structural engineer to design the footing including where to install the vertical reinforcement which usually is placed.
Mix up concrete in a wheelbarrow and dump concrete into the trench. Wide footing and extend below the frost line. Have a helper go back to mix and dump successive loads of concrete until you have filled the trench to the appropriate level which in this example is 7 inches. Tie string along each stake to mark the perimeter of the footing area.