The short answer
The owner picks their area, sees the days you are in it, and books a slot on one of those days. The form captures the yard, the horses and the work. The booking lands in your scheduling software as a job on that route, in roughly the right geographic order, and you approve or move it before it is confirmed.
Nothing about that asks the owner to understand your route. It asks them for a postcode and shows them dates.
Why it is not a normal appointment booking
A grooming salon books a chair. You book a journey. The unit of work is a yard with one to twelve horses on it, and the cost of the visit depends on where the previous job was. So the booking has to do three things a standard calendar widget does not.
It has to filter dates by area, so an owner in one village is only offered the days you are there. It has to collect enough about the yard and the horses to size the job, because two vaccinations and a lameness workup are not the same slot. And it has to be a request you confirm rather than a hard commitment, because the route changes when an emergency lands at nine in the morning.
What the booking should ask
Keep it short. The yard name and postcode. Access notes, gate code, whether there is hard standing and lighting. How many horses and their names, ages and passport numbers where relevant. What the work is, chosen from your actual service list. Whether the horse is insured. A mobile number that will be answered on the day. Whether someone will hold the horse.
That is one screen on a phone. Everything else can wait for the visit.
What actually runs it
The route lives in software, not on the website. Farriers commonly run ServiceM8 or Jobber, which handle jobs, scheduling, travel and invoicing on the road. Practices run equine-capable practice management such as Provet Cloud or ezyVet, where the clinical record, the horse and the invoice belong together. Some practices use both, with a field tool for scheduling and the practice system for records.
The website's job is to get a clean, complete request into whichever of those you use, then get out of the way. Where the platform offers a booking form or portal, embed or link it on one dedicated page. Where it does not, build a proper request form on the site that posts into the system, and be honest on the page that a person confirms the slot.
Confirm feature details with the vendor before you promise them on a page. Products change what they support.
The area and day map
The single most useful thing on an equine site is a plain list, or a simple map, of areas and the days you are usually in them. Tuesdays around one area, Thursdays another, alternate Fridays further out. It sets expectations before the owner books, it moves bookings onto the days that suit the route, and it answers the "do you come out to us" question without a phone call.
Say clearly that the days are usual rather than guaranteed, and that emergencies come first.
Yards with several horses
A yard manager booking six horses should not fill in six forms. Give the booking a way to add horses to one visit, and put the shared visit fee rule beside it. That is the difference between a yard booking online and a yard manager ringing.
What happens after they press book
A confirmation that repeats the date window, the yard, the horses and the work, and says what to have ready. A reminder the day before with the arrival window. A message when you are on the way if your software sends one. And the emergency number in every message, because the horse that is fine on Monday may not be on Wednesday.
The honest limitation
Route-day booking does not give an owner a time. It gives them a day and a window, and any site that promises ten fifteen on a Tuesday will be wrong by half past nine. Say morning or afternoon, say you will ring when you are leaving the previous yard, and the expectation holds.
Where this sits
Route-day booking by area with yard and horse details is the first thing we build into an equine vet and farrier website, and booking that feeds the operator's real software rather than a separate diary is how we build pet business websites generally. The route belongs to you. The website just fills it properly.