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Mr. Michael 10-23-2012 10:31 AM

stiffening up my floating floor
Over the weekend, I installed approximately 700 ft² of US Floors strand woven floating bamboo floor. (EXCELLENT product, by the way. ZERO waste to speak of, other than my errors). However, under a large doorway between kitchen and living room, there is an area that feels "spongy". It's obviously due to me not getting my subfloor level in that spot. (IDIOT!) It's maybe 2 feet wide, and runs perpindicular to the boards about 6 feet.
It's a "drop n lock" install, not T&G.
To tighten it up, I plan on cutting and removing one board (hopefully not more) and sliding maybe real thin plywood under the 3 in 1 underlayment in this area, with hopes that it will take the flex out of the bamboo, then reinstalling and gluing the bamboo board back.

Does this seem like a viable option from here? Obviously, there are a lot of "should haves" but it's too late to tear up the floor and start again.:no:
Thanks for any and all advice.

zakany 10-23-2012 12:55 PM

Stuff happens. You might consider using a door skin for a shim material, given the dimensions of your low spot.

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