How to read a commercial truck tire size

295/75R22.5 and 11R22.5 are not interchangeable just because both are common.

Metric sizes like 295/75R22.5 and conventional sizes like 11R22.5 describe different sections and aspects. Copy the full string from the sidewall.

Include ply rating and whether the tire is steer, drive, trailer, or all-position. That keeps the quote aligned with what is on the truck today.