Step ups are most stable when the upper block has sufficient bearing on the lower block.
Building a retaining wall with blocks on a slope.
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.
Build the wall up to the step up location.
Follow the block manufacturer s instructions for wall height limits.
That is why the construction of terraces due to a retaining wall begins from the bottom of the slope first a retaining wall is placed then up the hill a second wall is mounted which base goes below the upper part of the previous wall for at least 40 inches then the third one the fourth one and so on.
The length of the 824 assembly if available provides the flexibility to make this block ideal for this application.
If using the 812 assembly use the instructions listed above.
A retaining wall integrated into a sloping front lawn adds polish and curbside appeal.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.