The bar on the Smith machine at Planet Fitness weighs approximately 15 pounds (about 6.8 kilograms). This weight is standard for many fitness facilities that utilize Smith machines.
It's important to note that the Smith machine itself may have varying features and weight specifications depending on the specific model used by different gym chains. However, the universal weight of the bar remains consistent across many gym brands, making it a reliable factor for users during their workouts.
When planning your lifting routine, keep in mind that this weight is considered in terms of the total load you are performing, along with any additional weights you may add. If you're new to using Smith machines, it's helpful to start with just the bar to get accustomed to the movement before adding extra weight.