How to maintain expansion space next to metal exterior threshold.

Old 06-05-14, 09:06 AM
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How to maintain expansion space next to metal exterior threshold.

I understand the purpose of leaving expansion space around the exterior wall, cabinets, etc while installing a hardwood floor. My room has a six foot exterior door opening with a metal threshold. The flooring will be running parallel to this threshold. This six foot space will not be finished off with base molding or quarter round. The new floor is going on top of a concrete slab.

My question is: How do I maintain an adequatae expansion space in front of this door without leavng an uncovered, unfinished gap between the door threshold and the wood flooring.

This same queston applies to most of the six other door openings in this room as some abutt hardwood, some marble and some against carpeting.

Thank you in advance for your responses. Gary
Old 06-05-14, 09:21 AM
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You can't always leave an expansion gap everywhere. I'd butt the flooring up to the thresholds and not worry about it. The main thing is to leave the gap throughout the majority of the room under or next to the baseboard.
Old 06-05-14, 02:04 PM
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Leave a gap and fill it with flexible caulk.

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