Step ups are most stable when the upper block has sufficient bearing on the lower block.
How to build a concrete block wall on a slope.
Building step ups with ab fieldstone 824 assembly.
Foundation all concrete block walls must rest on a sturdy foundation of poured concrete.
How to build a retaining wall on a slope depends a lot on the location where you plan to build the lay of the land.
Lay out the wall and excavate the slope and the footing trench.
A concrete block retaining wall is the perfect solution to control erosion to eliminate a hard to mow slope to add a planting bed or to level an ideal patio area.
Fill the concrete cores with crushed gravel.
The length of the 824 assembly if available provides the flexibility to make this block ideal for this application.
Push the first block into the mortar until it s 3 8 inch above the footing.
Before you start lay out and pour footing lay out your concrete block in a dry run spacing it with 3 8 inch plywood spacers mark all the edges of the course.
If using the 812 assembly use the instructions listed above.
The ground from the bottom to the top is about 6 feet with a length of 22 feet curving around the house.
Sweep away all debris from the top of the first course of block with a broom.
Take up the block and spread mortar on the footing.
A retaining wall integrated into a sloping front lawn adds polish and curbside appeal.
Build the footing and insert rebar into the wet concrete at intervals corresponding to the cores in the blocks.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
Stack the second course of blocks on top of the first course making sure they remain level.
The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line.
I am going to put in about 6 terraces to allow for the slope and am making each section about 12 inches high to allow for clearance with the siding on the house.
A retaining wall constructed on a sloping backyard or back garden brings a beautiful landscaping touch to the house by allowing you to create more living space while holding off soil erosion.
Backfill with gravel behind the wall to cover the drainage pipe.
Follow the block manufacturer s instructions for wall height limits.
These systems are easy to install durable reasonably priced and available in a variety of colors and textures.
The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block.