Originally Posted by DavidM

I have a load of decorating (tiling and paper hanging) to do at mum in laws
house and was think about purchasing a not too expensive laser level that
can be used to mark vertical and horizontal straight lines on walls and
ceilings.
There seem to be quite a few in the diy sheds. Do they produce a thin enough
line for decent accuracy (2mm), and how easy are they for getting a true
vertical or horizontal? Any opinions or recommendations please?
David.