Excavate for the Second Tier and Prepare Base

What happens here

After the first tier is installed, use a shovel and pickaxe to excavate the ground directly in front of and slightly below the first tier. This creates a flat, level base for the next step. Regularly check the depth and level of the excavated area with a spirit level to ensure uniformity and a consistent rise for the subsequent steps. This careful preparation is crucial for the overall stability and appearance of the stairs.

Goal: Create a level and appropriately deep base for the next step.