Yes, you can install these park benches on grass, but I always tell people that grass alone is rarely enough if you want the bench to stay level and safe over time. The short answer is that a hard surface is usually the most stable and low-maintenance option, while grass is absolutely possible if you prepare the base properly.
When placing park benches on grass, the main issues are sinking, wobbling, and moisture damage. Soil shifts with rain, freezing temperatures, and regular use. If you simply set the bench on a lawn, the legs can sink unevenly, especially in soft or wet ground. To avoid this, use ground anchors, concrete footings, pavers, or a compacted gravel pad under each leg or along the bench footprint. Many metal and wooden park benches can be secured with metal ground spikes or small concrete footings. This keeps the bench from tipping and reduces direct contact between the legs and damp soil.
If the location gets heavy foot traffic, or if the bench is near a path, playground, or picnic area, I usually recommend a hard surface like poured concrete, pavers, or compacted crushed stone. A hard surface provides a clean, level base, improves accessibility for wheelchairs and strollers, reduces mud and water pooling, and makes the bench easier to maintain. It also helps prevent rust and rot because the materials are not sitting directly in wet grass.
That said, many parks and garden spaces do install benches directly on grass by using a simple crushed stone pad or concrete piers below grade. The key is not whether it is grass or a hard surface, but whether the base is stable, level, and well drained. For temporary or light-duty benches, grass installation with anchor stakes may be fine. For permanent, heavily used seating, a hard surface or properly engineered footings is the better choice.
Before you install, check the bench manufacturer’s instructions. Some benches are designed with flat feet or mounting plates that require a hard surface, while others include anchor kits for soil. If you are unsure, you can always use pavers or a small concrete pad that sits flush with the grass, giving you the look of a lawn setting with the performance of a hard surface.
In short, grass can work with proper preparation, but a hard surface is still the safest and longest-lasting option for most park benches.