We got 2 of these - one for each side of the stone fireplace.  It was a tight fit - here are all the dimensions if you're facing a similar situation.  The base measures 15-5/8"x 47-1/4". The 49" width is the width just at the very top where it widens. The shelves are 11-1/2" deep (the receiver fit!)  The top, btw, is not solid like the base - it is 4" deep so don't plan on placing anything on the top.  8 pieces plus shelves, so easy to assemble.

Pros: Easy assembly, looks good, solid.