Looked in my HHR and got a woody!!
#17
Nope... not glued together... it's one piece... That's funny because a few people at the local HHR bar-b-que thought it was a couple pieces until I lifted it up to show them...
It was a larger piece I purchased over 4 years ago and used the other part of the wood for a similar project in the back bed of my "other car"...
Measured it and it was just the right size other than trimming a bit off the sides and rear to fit the shape of the floor. I was in doubt it would be long enough but just fit. It is pretty simple to lift out when I need the back area for "utility hauling"...