A reference mark would include any mark made anywhere, to
provide you with additional information. A good example of this is
provided for you in the picture below. The black arrow is pointing to a
mark made on a story pole to provide the stair builder with the bottom
of the floor joist location.
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Reference marks are made by carpenters, plumbers and
electricians. The biggest problem with reference marks, while more than
one construction worker is working on the project would be telling them
apart.
It is not uncommon to find a light switch marked on top of the concrete
foundation, right next to or on top of something that was painted by the
drywall contractor. Worse than that, would be a mark that was made by
someone else and then painted over or hidden by another worker.
One time I was working on three model homes for a large home builder.
These are the people who know how to solve problems and avoid repeating
them..
The Drywall Foreman arrived on the job site with a box of florescent
orange paint cans and spent over eight hours painting the concrete floor
with a wide variety of different symbols. By the time he was done, he
had irritated anyone who had previously put a mark on the floor.
To make a long story short, I never seen so many reference marks in my
entire life or irritated people. The drywall Foreman was just protecting
his company, by placing reference marks for problems that were going to
be covered up by drywall. These were problems that the drywall company
didn't want to be responsible for and could use the reference marks made
on the floor, just in case there was a problem with the home builder.
Words Of Wisdom To Stair Builders
Use as many reference marks as you need, while you're planning or
building your stairs. You would be surprised at how many times I nailed
something in the wrong place, because it wasn't marked properly.
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