On our outdoor factory benches, the slats are spaced with a precise center-to-center distance of 1.25 inches (32mm), which creates a visible opening of 0.75 inches (19mm) between adjacent wooden slats. This specific gap is the result of careful engineering—it provides excellent water drainage, prevents debris buildup, and allows airflow to keep the wood dry and resistant to rot. But the most common question we hear is: will small items fall through? The honest answer is that most everyday objects like keys, coins, pens, and sunglasses will not slip through, because their smallest dimension is typically larger than 0.75 inches. A standard house key is about 0.08–0.12 inches thick, but when it lays flat on the bench surface, its length or width spans far beyond the gap, so it rests safely across multiple slats. Similarly, a penny has a diameter of 0.75 inches—exactly matching the gap—so it may get stuck if dropped edge-first, but it will not simply drop straight through. However, the gap is deliberately not zero, because tightly packed slats trap moisture and dirt, leading to cracking and warping over time. For customers who need absolute containment—such as those using benches in daycare centers, pet areas, or workshop waiting rooms—we offer an optional closed-slat design with no gap at all. That version uses tongue-and-groove joinery to create a solid surface while still retaining the look of individual slats. It is also worth noting that our standard slat edges are slightly rounded, which helps narrow objects like paper clips or thin plastic cards to roll off rather than wedge into the gap. So in practice, a small coin or key left on the bench will stay right where you placed it, even in heavy wind or rain. If you are worried about very tiny items—like sewing needles, screws, or beads—we recommend adding a seat cushion or choosing the closed-slat option. We can also customize the spacing on factory orders: a tighter gap of 0.5 inches is available for medical or food environments, while a wider gap of 1 inch is used in agricultural settings to allow sawdust and feed to fall through easily. Ultimately, our 0.75-inch spacing is a thoughtful balance between comfort, durability, and everyday functionality. You can sit, relax, and drop your car keys without losing them between the boards—and if you ever do, they will be resting safely on the support rail underneath, where a simple hand swipe can retrieve them. For bulk orders, we pre-drill all holes and use stainless steel hardware to ensure the slat spacing remains perfectly consistent across every bench. We also test each batch with a standard 20mm gauge sphere; if the sphere passes through any gap, the unit is rejected. That quality control means you get a bench that is both beautiful and truly practical. So whether you are furnishing a park, a factory break room, or a backyard patio, you can trust that our slat spacing is designed to hold your belongings—and your peace of mind.