I live in BC, we have very little hardwood that is any good for burning, Larch is the best around hear. I have a 14 ft bump trailer from PJ I put on sides, about a foot high I can get 3 cord of wood in it, the great thing about the trailer is when I get home you open the doors and unload the first row, I burn 2 ft pieces, then, close the doors and lift it. The top of the door is mid , thigh.
I have a garage with a side area 6 ft wide I have that I fill, three rows, 26 ft long 8 ft high. I also have a wood shed, 12x 12 ft. I fill that also. that in a normal winter gives me 3 years supply. This year we are burning fir as it was, easy to get at and only 15 mile round trip, we can get jack pine easily and many people like that. I live in the Kootenays, and get a permit, free, good for 2 years, you can not cut green wood, other than that most everything is good, on crown land, and on logging sites, cull piles.
I have a wood furnace, with electrical back-up, this year is colder than most and I am burning a little more wood than normal 4 cords is normal.I like to keep at least 2 years supply on hand just in case.