If you own a horse, the most important thing you need to consider is their shelter and how to keep them safely contained in your property. You would need to erect a horse fence on a part of your property so your horse can exercise safely without you having to worry if it would be running off or getting lost. Horse fences should not only keep your horses securely contained but should not pose a risk if they try to push the boundaries and break free.
There are a lot of horse fencing solutions available for you to choose from. You just need to remember that your fence should be high enough to contain your biggest horse or highest jumper and low enough to contain your smallest pony. The gap between the cross bars in a post and rail fence needs to be small enough to prevent a horse from getting its head through, to prevent injury to the animal and possible damage to the fence. You choice would ultimately be affected by your budget, whether you want a permanent, semi-permanent or temporary solution, by the terrain that you plan to fence off, and the size and nature of the horses you wish to contain.