Engineered oak flooring

Postby cartertim » Sat Apr 21, 2012 6:45 pm


I am about to lay an engineered wood flooring over part timber floor boards and part karndene covered concrete floor. both floors are in good condition and level, although there is a very slight difference in level between the wood and concrete floor.

i have been given conflicting advice/opinions regarding underlay. some have recommended no underlay and pinning the floor so that it isnt a floating floor while other a 6 mm fibreboard or 6mm ply.

i will be removing the skirtings and cutting in around door frams while ensuring i leave a gap for expansion but just not sure whether i need to lay a subfloor?

any advice will be greatly appreciated.

Rank: Labourer
Progress to next rank:
Posts: 4
Joined: Sun Jan 08, 2012 5:07 pm


Simply Build It

Postby welsh brickie » Sun Apr 22, 2012 6:08 pm

if the floor is level,you must use a vapour barrier on the concrete with foam underlay.Dont nail it,its pointless as your floor is concrete and timber and will expand and contract on the different surfaces.
Also leave a 10mm gap around the perimiter.
When it comes to cutting around door casings you dont need a 10mm gap,leave 3 to 5mm and you can fill the gap with colour matched silicone.
welsh brickie
Rank: Project Manager
Posts: 2198
Joined: Sat Apr 12, 2008 7:54 am

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


  • Related Topics