Ensure you have a solid footing.
How to make a concrete block wall.
Things you ll need stakes line or string cement for footing wheelbarrow iron rake tape measure level sledgehammer pencil circular saw plywood trowel large mixing buckets large sponges bristle whisk broom.
Rebar should be placed in every other masonry core to provide structural support.
Footings should be at least twice the width of the concrete block and extend below the frost line.
How to build a concrete wall figure a.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
The concrete foundation needed to support a cement block wall is usually created by pouring concrete into a hollow form lining the sides of the excavation trench but the concrete can also simply be poured into the trench a common scenario for construction of a freestanding landscape wall.
Of compacted base 1 in.
For load bearing walls set tie rods at least 6 inches into the concrete footing before it is set.