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Construction - Most older floors are constructed from 2
1/4" x 3/4" tongue and groove boards blind
nailed to the
sub floor. The head of each nail is approximately 5/16" below
the surface
of the floor at the time of installation. Over the
course of the years, and with successive
refinishing, the depth of
the wood to the head of the nail decreases, and often the
heads of
nails begin to show between the boards. When floors are this thin,
sometimes
refinishing is not a viable option, and installation of a
new floor may be necessary. |