Afternoon guys (and Girls!) I am going to lay 150mm wide 18 or 20 mm thick rustic oak flooring in both a living room and hallway. I have 7 year old house (wooden, potton style) thats has a floating floor arrangement. the boarding already down is extreemly flat and even. What is the best way of laying the oak tongue 'n' grooved planks... ? 1st. is an underlay really needed? 2nd. should this be glue or glued and nailed? Other than that I shall remove and replace the skirting (giving me the chance to hide speaker cables etc). I think after that I am okay with the job in hand. Thanks for any views. Sherbs.