To prep for a shed installation, level your yard by removing any obstacles or uneven ground. Measure and mark the shed’s location, ensuring it aligns with property lines and has adequate space. Excavate 4-6 inches below the designated level, creating a 12-inch-wide perimeter trench. Fill the trench with gravel for drainage and compact it. Install a gravel or concrete pad within the perimeter, ensuring it’s level and stable enough to support the shed’s weight.