That is the time the farrier is in the truck. The farriers need to know their gross wages. Now remember this is the gross wage, before taxes and deductions. The farrier is traveling 200 miles at average 50 miles per hour. Divide this by the number of horses.
Lets say four horses.
If trimming horses for the day, say the farrier would get 12 done in that 4 hours. Things that would drive the cost down would be less drive time, doing all the horses in one stop, and doing more horses in the day. But, remember we are working an 8 hour day, including drive time from and to the shop, so you need to keep the additional horses within the 4 hours of the day in which the farrier has left to shoe or trim. So should a farrier receive a trip charge that covers expenses and time. In all other businesses they do.