Door threshold for laminate flooring

[john2k]

I've installed laminate flooring and I need to put a theshold in between two rooms where one side is the laminate flooring at about 18mm thick and the other room is just very thin vinyl flooring. So I need a slightly slanted door threshold. I've got the following: https://www.diy.com/departments/goodhome-decor-160-wood-effect-threshold-l-93cm/3663602530220_BQ.prd

But it seems like both sides have to be same height

 

[RandomGrinch]

But it seems like both sides have to be same height

Not from this picture!

 

[opps]

https://www.carpetrunners.co.uk/product/premier-2-way-ramp/

or similar.