What does this dotted box mean in the viewport? A while ago, I realized there was a dotted box at the origin of my chair object. I don't remember when it appeared. It moves whenever I re-position the origin, and it only appears in the layer my object is in. What does this box represent? Is there a way to turn it on and off for any object? It hasn't caused any problems for me, I'm just interested in what it is.
You might have pressed Shift+T, or enabled Texture Space in the Object tab of the Properties panel.



The size and location of the Texture Space are found here, in the Object Data tab: