Grono Deck problems
I have experienced excessive shrinkage, warping and sagging with this product?
I attribute the problems predominantly to sunlight as those planks less affected (or indeed unaffected) are in more shaded areas. Planks have been shrinking by up to 15mm in length over a period of 3 years and everything was installed as per the Manufacturer’s specifications.
I purchased the product with a 25 year guarantee through a local (National) Building supply Merchant and have learned that the Manufacturer Grono Deck actually went into liquidation in 2021 but that the product (and Guarantee presumably) was supplied through an associate Company, Grono Lawns, which also went into liquidation in 2023. Therefore, after 3 years since its installation I am left without any Warranty. As this product is still appearing for sale, I would advise anyone considering buying it, to ensure they are covered by a credible Warranty.






