In comparison to regular glass, tempered glass is more expensive cost of tempered glass per square foot. However, the benefits of tempered glass often outweigh the cost. Tempered glass is up to five times stronger than regular glass, making it more resistant to impact and breakage. This is why it is commonly used in high-risk areas such as car windows and front doors. Additionally, tempered glass is safer because it shatters into small, blunt pieces when broken, reducing the risk of injury.