40m2 minimum - ouch!

I only need about 8m2 to do the slope. So much for a good bargain.
Maybe I'll try to grow my own turf squares... I have lots of seedling trays, I may just start grass seed in those. If it works, I'd end up with squares of 40x60 for transplanting. It would look pretty patchy at first, but I could seed over to fill in - at least there would be something there strong enough to stand up to the mutts - and keep down the mud.
Ah the joys of gardening with dogs... wouldn't have it any other way, though.