carpet/laminate door strips?

[movingonup2015]

I have just ripped all the carpet up from my dining room and replaced it with laminate.
I have a section that goes into my living room (no door there - just an opening) and there is carpet in the living room.
There is carpet in the hallway and across the door from dining room to hallway was a double grip type carpet strip.

I now have to get two trim things that go from carpet to laminate - do I have to get one that has the grips on the one side like this one

www.diy.com/departments/diall-polished-gold-effect-aluminium-multi-edge-trim/161758_BQ.prd

or can I use one like this?

www.diy.com/departments/diall-carpet-cover-strip/152853_BQ.prd

I would prefer the latter as it looks like it holds the laminate down aswell rather than just floating over the top of it - plus my laminate is lower than the carpets but I don't know whether it has to have grips on the carpet end...

[wowfudge]

You need a carpet to laminate door bar - double sided with one side for the carpet the other for the laminate. They are nailed or stuck to the floor in the middle.

[specialsubject]

..and you can get them cheaper in Wilkinsons (if wide enough) or Screwfix.