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Back in March 2020, I spent close to $1,400 on Mohawk Vinyl Floor Planks from Costco to refloor my Living & Bedrooms. It was a DIY job, flattened the floors to tolerance, laid down cork underlayment and left ample space for expansion/contraction. To this day, there had been no bubbling, airgaps, squeaking or nightmare shifting that I see warned when installations are bad.

But this last year, I did notice every plank is warping individually, creating an upward crown in the center of the plank, and valleys at every joint. It's very noticeable when I vacuum; like going through a whoops or moguls. I doubt there is any recourse with the company, and for overall $2500 and my own labor, I can probably live with it for another 10-15 years, as long as this is the only problem I'm experiencing.

I wanted to know if anyone else has experienced this warp/bowing of the planks. I haven't found anything related this in my google searches. Attached are pictures of scrap pieces I've kept which show the exact same plank warping and some of the finished product (not recent). Thanks for reading/replying!