Placing an outdoor bench against a wall is a classic and space-saving move. But squeezing it flush with the surface is a common mistake. So, how much space should you actually leave? The golden rule is to allow a minimum of 2 to 3 inches (5 to 7.5 cm) of clearance behind the bench.
This gap serves several crucial purposes. First, it prevents moisture and debris buildup. Trapped water can lead to mold, mildew, and rot on both your bench and the wall. Air circulation is key for drying. Second, it protects your wall's finish from scratches and abrasion caused by the bench shifting slightly. Finally, it simply looks more intentional and polished, creating a shadow line that defines the furniture.
Consider adding an extra inch or two if your wall is particularly rough (like raw brick or stone) or if you're in a very wet climate. For benches with a slatted back, the 2-3 inch rule is perfect. However, if your bench has a solid, tall back that completely blocks airflow, consider pulling it out a bit further—up to 4-6 inches—to significantly improve ventilation behind it.
Remember, this small investment in space pays off in the long-term durability of your bench, the preservation of your wall, and the overall smart look of your outdoor oasis.