Advise needed please. We had engineered wood flooring installed in 4 of our bedrooms about 6 weeks ago at the cost of approx $10,000. This was using the floating floor method where the boards are glued together. The floors have several soft spots in each bedroom but the worst spot is in our master where is it very bouncy and when someone walks over the spot you can actually see the boards moving. I would estimate this spot is approx 2ft x 3ft. Is it normal to have a few soft spots here and there on most floating floor installations? I had the installer's supervisor out to take a look at a few scratches which were caused by his installers and also some caused by a furniture delivery company. I mentioned the soft spots at the time but was kind of given the run around. He said he did have a lot of 'tricks' to fix the bouncy spot and that the other spots were not bad at all. I would like to find out my options and then have the installer or the store representative (or both) out again to inspect the floors and hopefully resolve the matter. I would llike to know what your thoughts are so that when I talk to these guys I can sound somewhat knowledgable and not get the run around again. Any advise you can give me would be great. Thanks SO much. Chris

Sorry to read of your problems.
The Soft Spots are movement in the planks resulting from variations in the sub-floor flatness. The low areas in the sub-floor result in excessive movement called "Deflection".

Your sub-floor needs to be flat within 1/8" in 6' minimum. Each manufacturer has different minimum requirements... but your sub-floor does not seem to meet the minimum flatness requirement.

I just installed the Burce Turlington Lock and Fold flooring in my kitchen and living room. There are a few soft spots where the floor may sink an inch or two. The floor is not glued but obviously locked together. Will the boards eventually crack apart? Is there anything I can do to solve the problem besides ripping up the entire floor? I put the couch on one spot to hold the section down but there are two more spots just like it.

Thanks.

YIKES!!!!! 2" of flex, will eventually separate the flooring.

No, there is nothing you can do to "band-aid" it. Pull it all up and do it right this time. The substrate prior to installation, needs to meet strict flatness requirements of 3/16 of an inch, in 10 feet. Some manufacturers, require a very flat 1/8 in 8 feet.