Here's where I start, the northwest 1/2 of the loft. It's directly over the "Lodge", which used to be a 1 1/2-car garage with an opener, and can take the weight of ~80 bales. It doesn't need to be tight here to take best advantage of the space. I find it's easiest to follow the 2 x 4 "ribs" of the roof's underside, like this. "> Then, I start the 2nd row from the west. "> ...and so on... "> ...and so on... "> I "tie it on" by alternating east-west and north-south, so you don't have a whole stack of heavy hay falling on you if one slips. On the north and south edges, where it's shallow, this is less likely to occur, but... safety first!