My Xtra-Tall 2H BP carried 30+ 55# squares a couple winters ago.
Sorry, I don't recall the exact number.
It was too muddy for hayguy to back his wagon into the barn so he hooked up my trailer, filled it and brought it back for me.
The center divider was left in, or he may have been able to squeeze in a few more.
*friend of bar.ka*RIP all my lovely boys, gone too soon: Steppin' Out 1988-2004 Hey Vern! 1982-2009, Cash's Bay Threat 1994-2009
Sam(Jaybee Altair) 1994-2015
Tobruk..that's pretty close to my truck bed stacking method too. Only I do 13 on the bottom of the long bed F250 with the gate down...second row I get 6 down each side and wedge 3 length-wise in the centers and use the 3rd layer to hold the second layer down. I only use the 13,15 and up if I'm stacking a lot though...otherwise I start with 11 on the bottom (gate still down) and go from there.
My hay guy can get 75 in my truck...tight enough for no tie downs either. That man's a stacking guru...but then I'm also only going 10 minutes away and no highways.
You jump in the saddle,
Hold onto the bridle!
Jump in the line!
My farmer husband can get 58 small sqaure bales (about 45lbs each) in our 2horse Trail-et New Yorker. That's totally stacked to the gills. We have to go fill up again in a few days, we'll see if he can do it again
*that was with the divider removed and not one bale went into the dressing room. Hay farm is 10 minutes down the road - straight shot.
I can do 50 in the trailer and 32 in the truck. However, 32 in the truck has it stacked up really high. Don't plan on driving faster than about 35mph, unless you are particularly adept at tying the bales down.