And, in particular, plastic carpet tiles which are being rolled out in classrooms throughout the country. For it is time that we start talking about synthetic carpet for exactly what it is. "That’s a compelling reason to use sustainable wool wherever we can to make healthy homes for Kiwis and the world," he penned. The plastic tiles, which are recyclable, might well be more cost-effective than New Zealand wool tiles or carpet, but the two products cannot be compared solely on a cost basis. What about our sheep farmers who produce 100,00 tonnes of strong wool a year which could be used for carpet?