Yes, you can put backyard furniture on grass. However, it's important to consider the stability and potential damage to your lawn. At Lancaster Swing Set, our outdoor furniture is designed to be sturdy and stable, but for best results, we recommend placing it on a flat, level surface. If you're concerned about damaging your grass, consider using patio pavers or a deck as a base for your furniture. This can help distribute the weight more evenly and prevent damage to your lawn.