Western saddle tree size question

Is this the correct ascending order?

Semi QH bars
Regular QH bars
Full QH bars
Wide bars


Or are wide and full bars one in the same?

Does anyone know how Circle Y saddles run....big/small? I know I heard once that Tuckers run on the smaller side and I am sure that just like with women's clothing there is no set size between makers.

You have the tree sizes in the right order. A full qtr and Wide tend to be the same for most company's. Circle Y saddles seem to fit really well if you don't have a horse that needs a specific tree such as a gaited horse. When I worked in a tack store the easiest thing I told people when they were asking for tree advise is if your horse doesn't show much of a wither (mutton) then you would use a full/qtr or possibably a gaited, depending on the horse. Semi qtr trees work real well for the thoroughbreds and avg size horses.