That's an excellent and practical question! The short answer is: it depends entirely on the specific bench design, but yes, many commercial and public space benches are designed with this capability in mind.
Many manufacturers produce outdoor benches with integrated linking systems. These often feature discreet, reinforced connection points on the sides—such as slots, brackets, or reinforced holes—that allow benches to be securely bolted or pinned together. This creates a seamless, stable, and longer seating run, perfect for parks, campuses, or public plazas.
If your benches weren't originally designed to connect, you might consider using heavy-duty security chains or cables with robust padlocks. This method is more about deterring theft or unauthorized movement than creating a rigid, unified seat. It keeps benches in a general arrangement but doesn't provide the same stability as a dedicated linking system. Crucially, you must always prioritize safety. Any connection method must not create tripping hazards, sharp protrusions, or pinch points. The benches must remain stable and not wobble when used.
For a cohesive look and function, purpose-built modular or sectional benches are your best bet. They are engineered to lock together cleanly, ensuring both safety and visual appeal. Before attempting to link any benches, always check the manufacturer's guidelines or consult with a professional to ensure your method is safe and suitable for the intended public use.