Get Tread Depth And Tire Pressure Documentation Table

Tires in good condition should have a minimum of 6/32” to be useful, or 4/32” if the tire is 13-14”. The average legal minimum tread depth is 2/32”, but driving becomes unsafe with such a tread. Besides, most dealerships require at least 4/32” tread to trade-in a car without prior a tire change.

1:27 5:07 How to Measure Tire Tread Depth on your Car & Why it's Important YouTube Start of suggested clip End of suggested clip First I'll be working with almost brand new tires. The first measurement is 932 of an inch or sevenMoreFirst I'll be working with almost brand new tires. The first measurement is 932 of an inch or seven millimeter. We are looking for the measurement line that meets the casing of the tread depth gauge.

The Tire Rack's advice is that if rain and wet roads are a concern, you should consider replacing your tires when they reach approximately 4/32" of remaining tread depth. Since water can't be compressed, you need enough tread depth to allow the rain to escape through the tire's grooves.

For example, a tire that started with 10/32" of original tread depth and has worn off 4/32" (down to 6/32" of remaining tread depth) is 50% worn.

The tire tread depth gauge measures in 32nds of an inch. Good tire tread depth will be 6/32 or deeper. If the depth is 4/32, you should start thinking of replacing your tires and getting new ones. 2/32 or less means that you should change your tires ASAP.

Another easy coin test to measure tread depth is the quarter test. Insert a quarter into your tread groove. If the tread touches Washington's head, you have at least 4/32 inch of tread remaining.

For the Federal Motor Carrier Safety Administration (FMCSA), minimum tread depth for truck tires needs to meet § 393.75: Steer tires, or any tire on the front wheels, must have a minimum depth of tread of 4/32 of an inch. Every other tire must have a minimum depth of 2/32 of an inch.