Alright...my single tree I use for a single draft is 33" long. For the team I use one that is 48" long and both sizes are for Percheron mares that measure 17.2H and are approximately 1750lbs. When someone hasn't worked with a large working draft horse, they often don't know what kind of equipment we use or really what it is for and the purpose behind it. Be sure that the single tree's are made of a good hard wood such as oak. Start slow with your mare and work up her stamina and strength, but I am sure your uncle has taught you well.
Taffy, while your intentions were good, you do fine driving, we do work with our draft horses and I mean that as no disrespect but you honestly don't have a clue as to what size we need because of your fine driving experience. And it is an honest mistake that many who are more involved with fine driving and light horses make.
This is from the DRAFT HORSE site where we order much of our working equipment and harness. The owner of the store is a very knowledgeable man, he has been involved with draft horses for years, if you need help with anything, look him up and give him a shout, they are great folks to work with. I believer that Gary himself has Belgians too.
This is from the Draft Horse Super Store web site:
18” or 20" are for miniatures
22” or 24” Pony sizes
26” or 28” Mules, Haflinger, Saddle horses
30” Draft cross
32” or 34" Draft
36” XL Draft over 2200 lbs
Grey Sorrel don't assume because I do "fine Driving" Which is hardly what I do, as I have never driven Hackneys or Saddlebreds, or Saddlesaet Morgans in a show ring, which is what Fine driving is. You are going as far as being condecending to me as I said I would not use a single tree less than 36", which I still would not, pulling logs or a skid. Lets be nasty over 2" okay.
My Fine Driving Draft is 19.1 HH and 2300 pounds, Now you say I don't have a clue as to driving Drafts, I suggest You hold your tounge before you spew forth remarks that might make you look, well, not having a clue as to what you are talking about. I have shown drafts at the Missouri state Fair, Illinois State Fair, Oklahoma State Fair, Ozark Empire Fair, Frainklin, Lincoln, Jefferson, Washington county Fairs, St louis National and several local driving and riding shows. I have taken my Drafts to Bar openings, Golf tournaments, City "days", and numerous parades.
This is my fine driving horse Sam showing off his harness for Smuckers Harness Shop and in the back yard. I can't find photos of Seamus, Ben, Bonnie, Rocky, Hilda or Sailor right now. Smuckers Harness Shop: Leather Draft Horse Show Harness