Thank you both. If floating the floor, is the underlay stuck to the concrete, and then the wood stuck to the underlay? Floor width is 143 - should this be stuck down? Someone said their floated floor creaks! Is this a general problem - or perhaps her floor not properly fitted...
Two retailers are advising different methods for laying a solid wood floor. One says it must be laid directly to the concrete subfloor, the other says put down an underlay and "float" the floor. Which is correct please?