Browse Forums Flooring & Floor Covering Re: Help from the carpet/underlay experst please!! :) 3May 26, 2010 8:36 am Build thread: viewtopic.php?f=31&t=32574 Re: Help from the carpet/underlay experst please!! :) 7May 27, 2010 5:36 pm It's always the same rule, like Ash says. The lower and denser the better. Carpet in airports etc has NO underlay (I am sitting in Sydney Airport right now and there is no underlay under this carpet). Hi l plan to install a self adhesive vinyl plank floor. l first need to attach masonite boards underlay to by plywood subfloor of my house. What size nails and how many… 0 8857 Jimbo73 I would use heaps of adhesive on each sheet and screw rather than nail. use as many as you like cheers Simeon 1 4315 1 16473 |