Short answer: yes, you can absolutely get a park bench with a center armrest specifically designed to stop people from lying down. In fact, this is one of the most common bench configurations sold by commercial outdoor furniture suppliers, park departments, and facility managers.
If you are shopping online, use search terms like "park bench with center armrest," "bench to prevent lying down," "anti-sleeping bench," or "bench with middle armrest." Many suppliers list these under "hostile architecture" or "anti-lie" product lines, but the more common commercial wording is "center armrest bench" or "bench with center rail."
You can find this style at commercial outdoor furniture retailers, park supply companies, and industrial equipment suppliers. The key feature to look for is a metal armrest mounted in the middle of the seat, not just armrests at the ends. The center armrest breaks the flat seating surface so an adult cannot comfortably stretch out across the full length of the bench. Most center armrests are about 6 to 12 inches wide and are placed at the midpoint of the seat.
When choosing a bench, look for a center armrest made from powder-coated steel, cast aluminum, or stainless steel. If the bench is recycled plastic, confirm the armrest is designed to bolt to that material. If the bench is wood or metal slats, a center armrest retrofit kit can usually be added later. Use tamper-resistant hardware if the bench will be in a public or unsupervised area.
If you already have a bench, yes, you can often add a center armrest. Many manufacturers sell bolt-on center armrests or center rail kits for wood, metal, and recycled plastic benches. You usually drill through the seat slats, align the armrest bracket on top or underneath, and secure it with carriage bolts or security screws. Installation is not difficult, but the fasteners and spacing should match the bench material.
Does a center armrest actually prevent lying down? It is a strong deterrent, but it is not always 100 percent. Some people can still curl up on one section or lie across shorter segments if the bench is long enough. If you need a stronger solution, consider a bench with multiple armrests, individual seat compartments, or a shorter bench. In many public spaces, a single center armrest is enough because it makes lying down inconvenient and uncomfortable.
You should also be aware that center armrest benches are sometimes called "hostile architecture." Some people see them as anti-homeless design. Others view them as a practical way to keep seating available, prevent damage, and give people with mobility issues something to push against when standing. If the bench is on public property, check local rules or design guidelines before making changes.
Bottom line: yes, you can get a park bench with a center armrest to prevent lying down. You can buy one ready-made, request a center armrest when ordering a commercial park bench, or retrofit an existing bench with a bolt-on center armrest. Choose weather-resistant materials, and use tamper-resistant hardware for public areas.