Join Date: Aug 2009
Location: New South Wales, Australia
I've read conflicting things regarding draft horses. Some people readily recommend them for heavier riders however many don't.
These heavy breeds were bred for pulling weight which they can do quite well, but not carrying weight. In some breeds, their muscling and structure isn't nearly as good at carrying weight as breeds bred for riding. In addition, they don't just have to carry your weight, but all their weight as well which apparently works out as proportionally more than a riding horse. It's like you'll find many ponies can carry proportionally more than a larger without difficulty. So large size doesn't always mean that they're suitable for a large rider.
I don't know a lot about drafts and weight bearing but I have seen smaller stocky horses being able to deal with heavier loads much easier than larger horses. It's worth researching to see what your best option is. It makes sense that a heavier horse can carry more, but they're not made for that purpose, where as other breeds are.
As always though, it comes down to the individuals horse to see how they are built. If you're going to be looking a draft cross it's probably worth getting to know what characteristics are going to be best at carrying weight because crosses vary a lot.
Research it, talk to people, figure out what is best. It's certainly something to think on though.