The width of the experimental hall at a 6-GeV facility is closely related to the length of the beamlines. This note addresses this aspect in some detail. In general, no two beamlines will have identical lengths or the placement of various optical elements. Hence fixing the beamline lengths prior to their assignment to specific experiments is difficult. In spite of this fact, a few general conclusions can be made. 1. At least 25 m of all the beamlines will be behind the shielding wall. Within this length many beamline components can be accommodated. 2. For most beamlines on bending magnets, the first optical element will be at 30 m. For a 3:1 aspect ratio for the optics, the hutch will be at about 40-50 m. This will cover most of the general applications like absorption spectroscopy, diffraction, etc. 3. The undulator beamlines will have to be somewhat longer with the experimental hutch located at about 70-80 m for most investigations. This demands the width of the hall to be about 32 m measured from the beamline to the ring road.