I really feel for you because obviously you want to ride and realise that you are not 'fat' as such, but due to your height, build and muscle, your weight is above riding school limits. However when it comes to riding, weight is weight regardless if it comes from muscle or fat.
As much as I would love to reassure you and say that it would be ok to ride, my priority has to go with the welfare of the horse. Yes, there are big horses out there, but just because a horse is big, it doesn't mean it can carry that much weight. My late horse was as big as they come, he was a 16.2hh shire x tb who was built like an absolute tank. However, I would not have allowed someone of 17 stone to ride him, I wouldn't have allowed anyone over 14 stone to ride him. Big horses often have joint issues which need to be considered as they are already carrying their own excess weight which puts extra strain on both their joints and other organs. This is the reason why heavy horses have a much shorter life span than smaller ponies. It is not uncommon for shetland ponies to live into their 30s, but it would be very rare to find a shire horse of that age.
I agree that some riding schools do have higher weight limits, but I would question their motivations for doing so. Is this about attracting paying customers, or is it about the welfare of the horse? I would have a look at the Cumbrian Heavy Horse website. They only have big horses (shires, Clydesdales and suffolk punches), all of whom are very fit, but they still insist on a 14 stone weight limit. I'm sure there is a section on their website which explains why this is.
There are lots of ways to enjoy horses without riding. Caring for them is very rewarding as it helping at shows. Or even driving might be something you could do?
As much as I would love to reassure you and say that it would be ok to ride, my priority has to go with the welfare of the horse. Yes, there are big horses out there, but just because a horse is big, it doesn't mean it can carry that much weight. My late horse was as big as they come, he was a 16.2hh shire x tb who was built like an absolute tank. However, I would not have allowed someone of 17 stone to ride him, I wouldn't have allowed anyone over 14 stone to ride him. Big horses often have joint issues which need to be considered as they are already carrying their own excess weight which puts extra strain on both their joints and other organs. This is the reason why heavy horses have a much shorter life span than smaller ponies. It is not uncommon for shetland ponies to live into their 30s, but it would be very rare to find a shire horse of that age.
I agree that some riding schools do have higher weight limits, but I would question their motivations for doing so. Is this about attracting paying customers, or is it about the welfare of the horse? I would have a look at the Cumbrian Heavy Horse website. They only have big horses (shires, Clydesdales and suffolk punches), all of whom are very fit, but they still insist on a 14 stone weight limit. I'm sure there is a section on their website which explains why this is.
There are lots of ways to enjoy horses without riding. Caring for them is very rewarding as it helping at shows. Or even driving might be something you could do?