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| How Many Stair Stringers Do I
Use? |
By Greg Vanden Berge
I get asked this question a lot, how many stair stringers
do I use when building a set of stairs?
These questions are actually easy to answer and with a little bit of
common sense and the ability to read a tape measure effectively, I
should be able to give you a clear explanation that will provide you
with the answers that you are looking for.
It's common in the construction industry for roof rafters and floor
joist to be 16 inches on center and we can also use this measurement
while building a new set of stairs and figuring out how many stair
stringers we actually need to use.
If you have a stairway that's 48 inches wide and you divide your 16 inch
on center measurement into 48 inches, you will find that you need to use
for stair stringers. If you're stairway is between 30 and 36 inches you
will need three stair stringers.
How many stair stringers you actually need will also be determined by
the thickness of your stair treads. If you're going to use a 4 x 12
stair tread, there's a good chance that you would only need one stair
stringer at each end of the stairs, if you're stairway is less than 40
inches wide.
If you're going to use 2 x 12 stair treads, you could space your stair
stringers 24 inches on center. The thickness of the stair tread will
affect the amount of stair stringers you actually need, but you can't go
wrong with the original 16 inch on center measurement, unless you're
going to be using stair treads that are less than 1 inch thick.
Always check with a building professional first, before building your
stairway to verify the amount of stair stringers you will actually need.
This article is only meant to give someone a general idea but cannot be
used in every situation effectively.
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