Human: How do I choose between a squat rack and a power rack? Assistant: 
The main difference between a squat rack and a power rack is the size. A squat rack typically has a bar that is around 30 inches wide, while a power rack can have bars up to 45 inches wide. Power racks are designed for more advanced lifters who want to focus on increasing their strength and explosive power in the squat. Squat racks are generally used by beginner or intermediate lifters who just want to get stronger with squats.