We used to load these loads by the dozen out of their Drummondville facility. They paid by the pallet and they would load you to the absolute max weight possible. If they would overload you, they would unload you and reload you with a few bags less... could take 1/2 a day sometimes to load that cheap crap. Back then the US $ was good to help compensate, but overall, cheap garbage delivering to garden centres...some with no docks, which you only find out when you get there. AND... sometimes they would book you for 20 pallets at $50 each. If they only end up getting 19 skids on after 4 hours of loading...you're getting docked the $50. So get a flat rate agreement, if you absolutely need garbage loads. But, they did pack quick.
Good luck.