What does 12-ply mean?
We generally see the ply rating in OTR tires when referring to how heavy duty a tire is rated. The most common ply rating range would be 10, 12, or 14 ply rated, which in actuality only has two or three fabric or steel plies.
How much weight can a 12-ply trailer tire carry?
Helpful Expert Reply: For trailer tires that are size 4.80-12 in a Load Range B like the part # AM10060 the weight capacity is 785 lbs at 60 psi. You should note that with trailer tires you have to have them inflated to their max PSI at all times to get the full capacity.
Is the higher the ply tire better?
This number correlates to the maximum safe carrying capacity of the tire when it’s inflated to its maximum pressure. Higher load index ratings mean your tires may be able to handle a heavier load.