Plan everything around his size first
A Clydesdale move is a logistics exercise before it is anything else, because a draft horse does not fit into arrangements designed for an average riding horse. Start by measuring what you actually have: his height at the withers and his length, the headroom and internal width of any transport you hire, the door height and ceiling of the stable he is moving into, and the width of the gateways he will walk through on arrival. Write the numbers down and check hired transport and the new stable against them honestly — a horse who has to duck and squeeze travels badly, and discovering a low stable door on arrival day leaves you nowhere good to stand him.
Choose transport with real headroom and a kind ramp
Book the largest horsebox or trailer you can, with a wide partition or the partition removed so he can balance his weight across his feet, and inspect the ramp yourself: it should be shallow, non-slip and rated for the weight of a horse who may weigh close to a tonne. A steep, springy ramp that a pony skips up is a genuine barrier to a draft horse, and forcing the issue teaches him to refuse next time. Travel him on his usual hay, keep the journey direct, and if he wears boots at all, use only ones he has already travelled in — his heavy feather makes ill-fitting boots rub faster than on a clean-legged breed.
Prepare him with short, calm loading practice
The Clydesdale's temperament is the easiest part of the move — this is a breed selected for centuries to work willingly beside people, and most load and travel with great steadiness once they understand the question. Practise in short sessions: walk on, stand, eat something good, walk off, and stop for the day while it is still easy. Use the practice days to get his legs right for travelling too — wash and thoroughly dry the feather the day before rather than the morning of, check the skin within it is clean and comfortable, and pick out and check those dinner-plate feet, because a stone bruise picked up in the last week at the old yard makes a long stand in a box miserable.
Check the new stable and fencing fit a draft horse
At the new yard, think like a tonne of horse. The stable floor and bedding must cope with his weight without becoming a skating rink, doors and bolts should be solid enough that a casual lean does not bow them, and fencing needs to be genuinely strong — a Clydesdale scratching an itch on a weak post-and-rail run can bring a whole section down without meaning any harm. Check his water too: a small automatic drinker may not keep up with a big horse's drinking, and many draft owners add a large bucket or trough in the stable. First turnout should be somewhere with room and sound ground, since gateways churn quickly under big feet in wet weather.
Write the moving day down in one place
A draft horse's move usually involves several people — one to book and check the transport, one to prepare the stable, one to travel with him — and the plan fails when each person carries a different version of it. Write the day down in one place: his measurements, the transport booking and its arrival time, his feeding and turnout routine, and who is doing what at each end. His profile can also be opened by relatives helping at either end, under KinsLe Family Sharing.