A squat rack is a type of strength equipment. It’s designed to support weight when you perform squats. Its primary purpose is to help you progress squats by adding increments of weight. It means that you can lift weights that, without the squat rack, you wouldn’t be able to do on your own. 

Although the squat rack is intended to help with squats, you can actually perform a lot of different exercises like:

 
• Shoulder press
• Back press
• Back squats 
• Barbell lunges 
• Deadlift 
• Overhead press