Hardwood question - expansion space needed?

Old 11-16-11, 04:14 AM
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Hardwood question - expansion space needed?


Next week, I'll be installing 3/4" solid hardwood (nail down). The railing in the photo (see link) is where I'd like to start and my preference would be to put the boards right against the base of the railing. Will this pose problems? Should I keep a small space?

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Old 11-16-11, 05:28 AM
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It needs room for expansion and contraction.
Old 11-16-11, 05:42 AM
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If you control your inside moisture level, humidify and dehumidify as needed you can minimize the expansion. If your house experiences a wide range of moisture levels, I've seem floors open up all over the place. Conversely, they will expand when the moisture returns.
Can you add a quarter round shoe to cover the required gap?

Be sure to acclimate your wood before you start.

Old 11-16-11, 08:25 AM
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I guess it's once again time to ask my so far unanswered question about expansion.

Given normal temperature and humidity variations in a home, how much can a 2 1/2" strip floor expand when each individual plank is nailed down?

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