Best way to glue / nail a threshold to floor

I have those pergo type floating floor laid all the way to the door and now I need to add a wood threshold (about 1/8" thick) to the top of the Pergo floor to even the elevation. I don't want to screw/nail because of the thinness as well as I am not sure these Pergo material looking plastic like will not just crack like that. So may be applying some heavy duty glue is the way to go? Any suggestion of the best method of attachment? What kind of glue should I use? Thos construction grade liquid nail in tubes don't seem to do any good.
Thanks,
O
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Silicone adhesive.
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<< What kind of glue should I use? >>
TiteBondII or III (cheapest) Any 2 part slow cure epoxy (toughest) HTH
Joe
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orangetrader wrote:

If you read the directions on the Pergo flooring box, it will probably say it needs 1/4" for expansion on all sides. Believe me, this is critical. I had to remove base and shoe moulding to trim the laminate flooring that was binding against the wall in a sun room when the flooring expanded, due to the sun beating down on it (I could see the flooring buckling). Nail the threshold so that it doesn't penetrate the Pergo, but allows the laminate to slide back and forth under the threshold. Gluing the threshold to the laminate won't work once the laminate expands and contracts. You did leave room for expansion, didn't you?
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Yes there is room at the bottom to expand. The room has this Pergo floor (well not really Pergo but Formica but the same thing) and my hallway has ceramic tiles. The Formica blanks comes to about 3/8" of the ceramic tiles and I have filled the gap now with those flexible joint compound. But the end of the floor plank is about 1/8" lower than the tiles and I have prepared this thin threshold about 3" wide 28" long and 1/8" thick which should sit perfectly for the transition. But I still need to cover it because the Formica planks were not cut perfectly straight. Several planks end there and each were cut a little off from each other.
O

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