Hoof trimming: how often and what the farrier does

Trimming is the most frequent procedure in a horse's life after feeding. It is also the most underrated: people pay for it regularly and far fewer of them know what exactly they are paying for.

Below, in order: why, at what interval, what happens in an hour of work, and how to tell a good professional from a fast one.

Why hooves are trimmed

The wall grows down from the coronet at 6 to 10 mm a month. A full replacement of the horn takes 9 to 12 months. A stabled horse wears horn off more slowly than it grows, because it stands on soft footing and works a few hours a week.

What happens if nobody intervenes: the toe runs forward, the heel folds under the foot, the bearing surface shifts back and the hoof-pastern axis breaks. Load on tendons and ligaments then redistributes and the movement changes — first invisibly, later with lameness.

Trimming returns the foot to the shape the individual limb dictates. Not a table of angles, that limb. How the foot is built and what its parts are called is in horse hoof anatomy.

How often

The shod figure splits by market: five to six weeks is the standard American cycle, while European farriers more often work to six to eight. The horn does not know the difference — the schedules do, and if you move a horse across the Atlantic the invoice rhythm changes with it.

A barefoot horse sees the professional more often, not less. That is the first thing that surprises people who pulled shoes to save money: between visits nothing is holding the foot, and the grown wall has time to alter the hoof-pastern axis. The full account is in the barefoot horse.

Signs that it is time, regardless of the calendar: the foot looks drawn out at the toe, the edge of the wall is crumbling, the horse stumbles more often, or a shod horse has the wall overhanging the shoe.

What happens at the visit

The order runs roughly like this, and it is not arbitrary.

1. Assessment in motion. Walk and trot, on a hard surface, in a straight line and on a circle both ways. The farrier watches how the foot lands: heel first, toe first, or crooked. 2. Assessment standing. Limb conformation, toe length, heel height, symmetry, wear on the old shoe or the old trim. 3. Pulling the shoes, if the horse is shod. 4. Knife work. Flaking sole horn and folded parts of the frog come off. Only what is already loose. 5. Nippers. The grown wall is shortened all the way round. 6. Rasp. The bearing surface is levelled and the balance set, both front to back and side to side. 7. Rounding the edge around the perimeter, the mustang roll. The wall stops working as a blade and stops chipping. 8. Assessment in motion once more.

For four feet that is usually 40 to 90 minutes, depending on the horse and on whether it is being shod.

What should not happen

The list is short, but it shows you everything.

• A pared sole. The sole is non-weight-bearing only in the textbook; in practice the callus under it is protection. It does not get pared off for the look of it.
• A frog cut back to live tissue. Loose flaps come off, the rest is left alone.
• A lowered heel. The commonest mistake: the heel is cut to make the foot look tidier, and the hoof-pastern axis breaks backwards.
• A foot trimmed to a template. Symmetrical limbs are a book ideal. A live horse is usually a little different left and right, and the trim accounts for that.
• Blood. There is no such thing as a normal trim that draws blood.

The reference figures for toe angle to the horizontal — 50–55° in front and 55–60° behind — are averages, not a target. The correct angle is set by that horse's hoof-pastern axis.

How to tell whether the trim was good

The main method: look six weeks later, not on the day of the visit.

On the day, any work looks handsome — the rasp hides the traces. Six weeks on the truth is visible:

• the foot holds its shape, or has spread at the toe;
• the hoof-pastern axis is straight, or has broken;
• the wall is intact, or has started to chip;
• the horse moves the same, or has begun to favour a leg.

The second method is to photograph the feet on your phone from the same angle every time. In a year you have a record that shows a trend rather than an impression.

The horse that will not give you a foot

A farrier is not a trainer, and is under no obligation to teach your horse to stand. That is the owner's job, and it is done in advance.

A foal is taught to give a foot from the first weeks, briefly and without a fight. An adult horse is worked on between visits: pick the foot up, hold it ten seconds, put it down yourself rather than waiting for it to be snatched away.

A horse that snatches its feet away gets a bad trim. Not because the farrier is unkind, but because it is physically impossible to finish work on a foot that keeps leaving. Five minutes of foot handling every other day solves this in a month.

When trimming is not the answer

There are conditions where the farrier works second, after the vet.

Laminitis with rotation of the coffin bone, navicular problems, deep through-and-through cracks, chronic lameness of unclear origin — here it is radiographs first, then a trim taken from the films. A farrier with no films is guessing in that situation, and it shows in the result. On laminitis itself — here.

What it costs, and where I stand

Trimming is the most regular line of expenditure after board. Ranges from listings and from owners, 2025–2026; there is no official statistic.

Add a call-out charge if the yard is out of the way. Noticeably below the local average usually means the farrier is in a hurry. One thing worth knowing before you book in Britain: trimming may be done by anyone, but the moment a shoe goes on, the Farriers (Registration) Act applies and only a registered farrier may do it. In the US and in Spain nothing is regulated, and the reference of another owner is all you have.

Godo PM goes without shoes and is trimmed every five to six weeks. The ground around Valencia is sand, I do not work over rock, and his horn is dense.

When I look at a horse for sale, I check the feet before anything else: they show how the animal has been looked after over the past year, and that is hard to lie about — how the search works.