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Stair Materials
Stair building materials used in residential, commercial or
industrial construction will normally be made of wood, metal or
concrete and maybe a combination of all three. The most common of these materials will be wood. The wood will
be construction standard material ranging from 2x4 to 2x14 and with plywood,
thicknesses ranging from half-inch to 1-1/8 inch plywood.
Try to remember
that plywood comes in different grades and these grades of plywood will
make a big difference whether you are building on the interior or the
exterior of your house. Plywood with a type X rating will be an
exterior grade plywood.
For example a good grade of exterior plywood would be a 3/4" cdx grade
of plywood. As a special note try not to use particleboard for your
stair treads it seems to flex and break easier with a heavy load on it.
I have seen large objects fall and punch a hole right through partial
board and OSB.
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