"TheScullster" wrote in message
...
"Roger Mills" wrote
You need to cover the joint, to make a job of it. Carpet plus underlay
and engineered wooden flooring are not dissimilar in thickness. You can
get purpose-made metal threshold strips (with various finishes to match
your decor - mine are gold) with a carpet gripper at floor level on one
side - and nothing on the other side - and with a slightly domed metal
strip over the top which is wide enough the cover the joint - including
allowing the wooden floor to expand. The top is joined to the front edge
of the carpet gripper strip with a Z-shaped section (in end view) which
collapses - and bends to suit - as you tap the cover strip down, allowing
the cover to sit at a slight angle if the thicknesses are not quite the
same each side.
Hope this makes sense - but shout if it doesn't, and I'll post a photo of
this stuff somewhere, on the basis that a picture is worth a thousand
words!
--
Thanks Roger
Yes I get the explanation and think I have seen examples of this.
But I have heard of these tapered wood infills also, which cover the
exposed "edge" of the wood floor and transition to carpet level.
Maybe it's good enough, as Andy Dee suggests, simply to finish the carpet
as if the wood edge was a wall. I was hoping someone would come back on
that specifically 
.
Must say I would like to get away from metal threshold strips if possible.
There are some wood effect ones, but how good they look against real wood
is debatable.
Phil
I only ever use hardwood strips beneath the door and the carpet buts to it
just like to skirting. I have hardwood door facings and skirting so it is
preferable to the various metal threshold strips. The only problems I've had
are.
1. With a thin bedroom quality carpet, the gripper bar tacks can be felt if
walked over with bare feet.
2. I the carpet is ever lifted, getting it to stay put again is difficult
(for me anyway). SWMBO won't let me lift carpets anymore.
I used to use Ramin and stained it darker but the lighter colour showed
through after it got scuffed. They were replaced with particularly dense
12mm hardwood door facings which were cut to size and given a couple of
coats of clear polyurethane varnish. They still look very good and IMO much
better than any metal strip I've seen.
Archie