That's an excellent and very practical question! The good news is that many modern urban benches are designed to be installed directly onto an existing, level concrete slab, which is often the most straightforward and cost-effective foundation. A solid concrete slab provides a stable, permanent, and flat base that prevents sinking and uneven settling.
However, simply placing the bench on the slab is rarely sufficient. For public safety and longevity, anchoring is almost always required. Benches in public spaces must be securely fixed to deter theft and, more importantly, to prevent tipping or movement that could cause injury. This is typically done using anchor bolts or chemical anchors drilled into the concrete. The key is to ensure the slab is in good condition—structurally sound, thick enough (usually 4+ inches), and properly cured.
While a concrete slab is ideal, there are scenarios where a special foundation is necessary. If the ground is unstable, sloped, or lacks an existing hardscape, you may need to pour concrete footings. Some heavy or unique designs might also specify a particular foundation type.
So, in short: Yes, you can often place benches on a concrete slab, but you must almost always anchor them to it properly. Always consult the manufacturer's installation guide for specific requirements related to your bench model, and check local regulations for public installations. Proper anchoring transforms a simple placement into a secure, permanent installation.