Originally Posted by darthbimmer

It's not that simple. On aircraft with 3/3 seating my 21" bag fits snugly in some bins, only wheels-out in some, and only sideways on others. It varies by aircraft (B737, B757, A320, etc) and airline. There is not a standard size or shape for these overhead bins. The variation is even greater on aircraft with different seating configs. There is also variation in how bag manufacturers measure their bags.



Casino pit bosses can estimate chip counts quickly because dealers are trained to put small spacers between groups of chips. The airline luggage equivalent of this would be a bag sizer. There are a lot of these hanging around, and if you've ever tried fitting your bag in one you've probably noticed that they are much smaller than what will fit on most aircraft. I'll take the system we've got at present, where the bag spacers are seldom used and FAs solve problems in real time. It's not ideal but it works better for me.