Planning to do some hardwood floor in my home. I am just wondering why
is it necessary to nail three or four times on each piece ? Since the
planks has tongue and grove on them, why can't one just nail the first
pieces at the perimeter of the room and let all other pieces "float" ?
Why the floating concept can only be applied on laminate flooring but
not real hardwood floor ? Just curious.
Laminate doesn't shrink, cup, and twist as much with changing humidity
as real wood does. White oak can change size by as much as 8%
of it's saturated size, in the cross-grain direction. Call it 4%
for the maximim reasonable humidity ranges.
On 2" strip flooring, (50mm), that's two millimeters per board.
The tounges are what, 3/8" ? So it should take the accumulated
shrinkage of less than 10 boards to create a big enough gap
to pop one out..
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