Yes, benches can absolutely be anchored on brick or cobblestone surfaces, but it requires the correct technique and hardware to ensure a safe and lasting installation. The key is to use masonry-specific anchors designed for the unique challenges of these materials.
For a solid brick surface, the most reliable method is to use concrete sleeve anchors or wedge anchors. You will need a hammer drill with a carbide-tipped masonry bit to drill a clean hole into the brick (avoid the mortar joints, as they are weaker). Insert the anchor and tighten it to expand the sleeve securely within the brick. Cobblestone can be trickier due to its often irregular shape and potential for movement. For cobblestone pavers, it's best to remove a paver, dig a small footing, and set a concrete pier or a ground anchor into the ground below the sub-base. The bench legs can then be attached to this stable anchor point.
Always use corrosion-resistant hardware like galvanized or stainless steel. For a non-permanent solution on cobblestone, consider using heavy-duty surface-mounted anchors that bolt to the bench legs and are weighted down, though this offers less stability. Proper anchoring prevents tipping, enhances safety, and protects your investment in outdoor furniture.