Office Chair Damages Floor

Whether an office chair damages the floor depends on the wheel material and floor type, and liability determination requires considering the cause of damage. Here is a detailed analysis:

Impact of Wheel Material on the Floor
Hard plastic wheels (such as PP/PU hard wheels) generate significant friction when in contact with the floor. Rolling them back and forth on wooden or tiled surfaces over an extended period can easily leave scratches due to the squeezing and scraping of the hard material. If the floor material is soft (such as pine or composite flooring) or lacks wear-resistant treatment on the surface, it may even develop dents, with scratches being more noticeable on light-colored floors. In contrast, soft PU wheels (polyurethane-wrapped wheels) are wrapped with elastic material around the wheel body, providing a gentler contact with the ground during rolling. They effectively disperse pressure, reduce the risk of scratching, offer good noise reduction, and are less likely to leave dents, making them suitable for use on various types of floors.

Compatibility Between Floor Type and Wheels
Wooden floors (especially solid wood floors) have relatively low surface hardness and poor tolerance for hard wheels, making them prone to wear over long-term use. Tiled surfaces have high hardness, but hard wheels rolling on them may produce fine scratches due to friction, affecting aesthetics. Soft PU wheels, on the other hand, are more adaptable to different floor types, reducing the risk of damage whether on wooden, tiled, or marble floors. If the floor itself has quality issues (such as lack of scratch-resistant treatment on the surface or loose material), even with soft wheels, local deformation may occur due to long-term pressure.

Principles of Liability Determination
If the floor is damaged due to improper use by the tenant (such as dragging heavy chairs or engaging in vigorous activities that cause intense friction between the wheels and the floor) or intentional damage (such as hitting the floor with the chair legs), the tenant should be held liable. If the damage is caused by chair quality issues (such as sharp chair legs or overly hard wheel material) or the floor not meeting standards (such as failing to meet the wear resistance standards specified in the contract), liability should be determined based on specific evidence, such as testing whether the hardness of the chair wheels complies with industry standards or whether the floor meets the quality requirements specified in the lease contract. If the floor damage is due to normal wear and tear from use (such as slight wear caused by long-term rolling of the wheels), the landlord is generally responsible for repair or replacement.