Hmm.. I can't tell from that whether it's using the whole map or not. Try this... Select the floor in the Assembly Room, go to the Modeling Room, and click on the UV Mapping Mode in the upper right corner. What I'm ***thinking*** we should see is, in the UV map on the right hand side, that the map isn't going corner to corner the way your texture image is (like in my sample image here), and that's what may be causing the problem.