No.
It's the only 2 hand weapon unsheathable, beacause of it's extreme weight combined with it's size. You mustn't only take in account the size, but also the weight, also, a big piece of wood is more easily sheathable than a sword with 46 cut on it's edge. Just how do you want to be able to sheath that thing ? It will obviously fall on the ground ripping your back on the same occasion.
Edit: Added the "h", thanks Tears for the vocabulary, clearly missed it. Sorry for readers offunded.