Here's something weird. We have a gym at a major HS in this area that has the black wide border around the perimeter, but there is a gap of a few inches inside the border and then your have the actual boundary line. This is the case on all four sides. This means that if a player with the ball, or the ball itself touches the inside line, it's OOB. It can be very confusing to visiting teams. I don't know why they just don't paint the border right up to the line and not have a gap between the two.
Oh wait - that would make sense. Silly me.
