What size GP saddle should i get?

[RockyDiamond]

I recetly bought a 5 year old Irish sport horse, he is 17.1hh and I don't know what size saddle i should buy for him. Can anybody tell me how to measure him by myself or any sizes that should fit him. Thanks

 

[Ali2]

Get a saddler!

 

[cremedemonthe]

As others have said, get a Saddler or a Saddle Fitter, we train hard to be able to be professionals in our field, we are here to do it for you!