Short answer: usually not in the sense of full leg-height adjustment. On most outdoor bench factory benches, the legs are fixed welded or bolted frame components. However, many models are supplied with adjustable leveling glides, threaded feet, or optional leveling pads at the base. These allow small corrections, often just a few millimeters to a couple of centimeters, so the bench can sit steady on slightly uneven paving, decks, or concrete.

If the ground is significantly sloped or deeply uneven, adjustable legs alone are not a safe solution. The bench should be placed on a prepared level surface, or the installer should use durable shims, rubber foot pads, or suitable anchoring as needed. For bolted benches, check that all fasteners are tight; for welded benches, do not bend the legs to compensate. Confirm the specific model’s specifications with the supplier and ask whether it includes leveling feet or requires optional glides.

In short: minor unevenness can often be addressed through adjustable feet or glides on many designs, but major unevenness requires site preparation or shimming. Stability and safe anchoring should always come first.