Yes, your weight does matter when using a treadmill, especially when considering safety, performance, and longevity of the machine. Most household treadmills have weight limits specified by the manufacturer. These weight limits are determined based on the structural integrity of the treadmill, the capacity of the motor, and the design of the deck and belt.
The maximum weight capacity of household treadmills typically ranges from 250 pounds (about 113 kilograms) to 400 pounds (about 181 kilograms), depending on the model and brand. Higher-end commercial-grade treadmills may support even higher weights.
It's important to check the user manual or specifications of your treadmill to find out its specific weight limit. Exceeding the weight limit could potentially damage the treadmill, compromise safety, and void warranties. If you're close to or exceed the weight limit of a particular treadmill, you might want to consider a model with a higher weight capacity to ensure safe and effective use over the long term.