Go to NAPA and buy a Repair Manual.
Open the rear hatch and look behind the panels on the left, or maybe the right.
With big massive gay people
The 2006 Ford Focus has 47.9 in. of rear hip room.
The 2014 Ford Focus has 53.7 in. of rear shoulder room.
The 2003 Ford Focus has 37.6 in. of rear leg room.
The 2009 Ford Focus has 36.1 in. of rear leg room.
The 2007 Ford Focus has 53.6 in. of rear shoulder room.
The 2005 Ford Focus has 47.9 in. of rear hip room.
The 2005 Ford Focus has 37.6 in. of rear leg room.
The 2010 Ford Focus has 38.3 in. of rear head room.
The 2004 Ford Focus has 37.6 in. of rear leg room.
The 2001 Ford Focus has 49.5 in. of rear hip room.