On Sun, 20 Nov 2005 11:19:44 +0000, Nick H wrote:

If you are levelling around a room I would really just use a good
quality spirit level, at least 1200mm long, and flip the level
around each time you mark the line so as to cancel out any
innacuracies within the level.

But doesn't allow you to compensate to innacuracies in the room. The
chances are that something that is dead level won't actually look
right. A laser enables you to mark a plane that looks right and be
close to true level.


--
Cheers
Dave. pam is missing e-mail