The tire tread depth is the measurement between the groove (the gap between the patterned rubber) and the top of the tire tread. For new tires, this depth is usually 10/32 or 11/32 inches (8 or 9 mm).

Related: How Do I Find the Correct Tire Pressure for My Car? New tires typically start with a tread depth of 10/32 to 11/32 of an inch, and they’re generally considered legally “worn out ...

New passenger car tires typically start with about 10/32" to 11/32" of tread depth. Specialized tires, such as winter tires or those used on light trucks, typically start with even more.