From a blog post on this subject:

"The installer came late last week and used a hammer and putty knife to forcefully move about 15 feet of flooring to close the gap. The plank he used against the putty knife was butted up against carpet. I noticed there wasn't a transition piece between the carpet and planks. Anyway, he put a strip of what looked like wood glue down before moving the row of planks to close the gap. It's only been a few days but that piece seems stable now."

Wow that looks awful. I've never seen CoreTec look like that. So much incompetence out there. Why the hell are today’s floors so hard to install??? No one seems to know what they are doing anymore.

Subfloor is out of 3/16 " tolerance. The flooring is probably sitting on a high spot.

Installed Coretec for a customer, it was the first and last time I will work with this product. the locking mechanism was in adequate and difficult to work with, unlike laminate I have worked with in the past which snapped together and was difficult to separate Coretec did not clearly make that connection. Even when joints were visibly tight the material was still not well connected. Flooring America, who sold the material to my customer told me as the installer that we could go over tile with no prep or underlayment, that we didn't need acclimate to the material and said it should be easy to install. I read the instructions and watched the manufacturers instructional video and followed the procedures per those instructions. 4 months after installation gaps started showing up. Contacted Flooring America and the manufacturer. They proceeded to blame it first on humidity issues (after telling us no acclimation was needed) and then came back out and blamed it on out of level floors. we installed 3/4" plywood over the existing subfloor to flush up with the tile they said we could go over (which we did a floor prep to fill all the grout joints and low spots). I can't think of a 30 year old house that isn't going to be 3/16" out of level in 10 feet, but that doesn't mean the floor isn't flat. Needless to say, after following all the advice and instructions of the "experts" the manufacturer pushed the problems onto the installer. I would not recommend any material that can't be installed over common anomalies in the average house.

what color is this can you please share?

don't remember the manufactures spec, but it was a dark brown with blacks and gray in the grain.

Not only are there gaps but you can see the seams. floor looks good from a distance but zoom in to those seams. should i tear out maybe can reuse in my laundry room .

Half way through the installi was informed by installer that he didnt follow the pattern . And an electric heater we had turned the floor orange( at least the house didnt burn down).

Peggy Sariano not sure exactly what your looking for as I cannot see the issues you speak of, perhaps a better description or pictures? Maybe even start your own post and describe the situation better.

Ok will do thanks.