Total thickness of Engineered Flooring including underlay

BarraOG wrote: »

Hi,

I'm exploring the notion of putting down an Engineered Floor in the hall but I want to be sure that the front door won't scrape the floor. Engineered floors are often 12, 14, 16 or 18mm. Underlays seem to be 3mm (I'm laying on a concrete slab). Do I simply add the board thickness and the underlay thickness to estimate what will work or should I add a few more mm?

That's all it can be. The wood will compress the underlay if anything, but negligible.

For example, if the base of the door is 20mm above the floor would I probably get away with a 14mm floor?

The floor might not be level and the gap when just opening might tighten up / open up as the door swings further? Worth checking. You can also reposition the bottom hinge slightly to angle the door imperceptably to swing upwards as it opens instead of level /downwards. Not too much, otherwise the door will turn into a self-closing one.

Alternatively. It's nothing much to trim a little off the bottom of the door if the gap is tight and (I assuming there is one fitted) raise the door saddle by insertion of a spacer sheet - say a piece of hardboard or good quality cardboard (say artists mount board). It'd hardly be noticeable if cut 2mm narrower than the saddle board itself.