Installing an outdoor bench seems straightforward, but proper ground preparation is crucial for its stability, safety, and longevity. The short answer is yes, you almost always need to prepare the ground. Simply placing a bench on grass or dirt can lead to wobbling, sinking, and premature rot.
The first and most critical step is to ensure the ground is level. Use a shovel and a level to create a flat, even surface. For a simple installation on stable soil, you can then add a layer of compactible gravel or crushed stone. This base improves drainage and prevents the bench legs from sinking into the ground after rain.
For permanent or heavy benches, especially on softer soil, concrete footings are highly recommended. Dig holes for the footings below the frost line to prevent heaving in colder climates. Place the bench's mounting hardware into the wet concrete and allow it to cure completely. This creates a rock-solid anchor.
Always consider drainage. A slight slope away from seating areas or a gravel base helps water dissipate, protecting wooden legs from moisture and metal from rust. Skipping this vital preparation might save a little time initially, but it will cost you in repairs or replacement later. A well-prepared foundation ensures your bench remains a steady and welcoming spot for years to come.