27 inches is the height (and width) of my kiln. To build larger than that, I must find artful ways to add a layer that can be fired separately from it's base. It's a skill I Haven't yet fully mastered, so I have been making pieces that fit in the kiln...a weak premise for creating art.
My new device (a bead dangling from a light fixture) tells me when I am approaching the 27 inch mark. I can, then, decide how to section the piece. It looks like this one will have removable heads.