Trex refuses to honor their warranty. Buyer Beware if you intend to buy their product. They will say anything to get out of a warranty claim. I bought over $3,000 of these boards from Home Depot in July 2017, and had them installed on my deck. My deck crew used hidden fasteners which are a feature of these boards. They secure down the boards from the side, by using clips in the side grooves. Following installation, the boards looked fine. I was a satisfied customer.
To my dismay, however, by winter, the 16 ft. boards had abnormally shrunk from the cold over 1/2 inch. In so doing, they pulled away from the hidden fasteners holding one of the edges, and actually began warping upwards. It looked terrible and was actually dangerous to walk across, since you could trip on the edge of the boards. If is a fixable problem with a little extra labor, by re-positioning the boards, but that labor would have to be done.
I called both my deck installer and Home Depot, and both companies said this level of excess shrinkage is abnormal. I then called the company to submit a warranty claim, sent them photos, etc. I was asking not for replacement of the boards, but only for $300 or so to cover the cost of a repair laborer coming out to re-position the shrunk boards on my deck. Their reply was automatic and bogus. They denied my claim. First, they said the board ends had to be manually screwed down with visible screws to prevent that shrinkage, and claimed such an instruction was in the installation manual. My deck crew said they were full of it, and when we checked, there was no such instruction. Then, they changed the story and said that "shrinkage" is not covered by the warranty. When we checked their warranty, there was again, no such exclusion. Then, they denied my claim a 3rd time, claiming that my crew had installed the hidden fasteners "wrong". I demanded they show me in writing anywhere, that our installation was not proper. They were not able to do so, yet still held to a denial of my claim. They said nothing about the abnormal shrinkage. In short, they had no intention of honoring any warranty claims, and they took a perfectly satisfied customer and screwed me over with every attempt possible to deny what both my deck crew, and my Home Depot rep said, is clearly a defective product. If I were you, I would not ever buy product from this company ... period. There are lots of other composite deck board brands out there, ones who recognize that sometimes, their products are defective and need warranty service. Any company who denies such claims based on fake bogus excuses, is not worth your business!