Are thick pad carpets problematic for robot vacuums?

It depends on your robot’s clearance and suction power. A thick pad adds height and softness, which can cause the robot to get stuck or reduce suction effectiveness. Most robots handle up to about 1 inch of pile; measure your carpet and pad height before buying. Higher-end models like Roborock or [Roomba j](https://www.amazon.com/s?k=Roomba+j&tag=wehavethat-20)-series may work, but don’t assume it’s fine.