Michael Daly wrote:
On 2-Feb-2005, "Dick" wrote:

Is there such a thing as an optical, sonic or laser device that
would enable me to measure exterior walls without having to trudge
through the snow to do this?

Golf shops stock optical rangefinders that might suit. Some tool
shops stock a similar version.

Unless he plans on carrying around a regulation flag stick, those
optical finders aren't any good. They measure based on a flag stick of
known height.