Measure distance with a laser light dot using handy tools that are available. These are called electronic measuring tapes or laser measuring devices. They are invaluable for carpenters, construction workers, real estate agents, plumbers, contractors and other occupations. Different techniques will give you measurements of building sizes, simple distances and even the measurement of a third side of a triangle. These tools tend to be expensive, but they can save you valuable time and energy on the job site.