Interior threshold for exterior door. Solution?

[justusandersson]

It is clear that the laminate floor was added later, which is why it's difficult to adapt the threshold to the floor. I don't believe there is a quick fix to this problem that is also attractive and durable. I think, as several have mentioned, that it's difficult to cut metal strips so that they also cover the gap between the inside of the frames and the laminate floor. After seeing henkku's detailed sketch, I am quite sure that you need to build an overlapping threshold in wood, preferably oak. If you have access to a milling machine or a good hand router with a guide rail, you can make it in one piece; otherwise, you'll have to make it in parts (height-wise). The new top must rest on the highest part of the threshold and the laminate floor without being attached to the latter. The alternative to this is to saw off the threshold and make a new one. In that case, it wouldn’t be the first time in history that it has been done.

 

[kulle]

It is clear that the laminate floor was added afterwards and that is why it is difficult to adjust the threshold to the floor. I don't think there is any quick fix to this problem that is both nice and durable. I believe, as several have suggested, that it is difficult to cut metal strips so that they also cover the gap between the inside of the jambs and the laminate floor. After seeing henkku's detailed sketch, I am quite sure that you need to build an over-bridging threshold in wood, preferably oak. If you have access to a milling machine or a good hand router with a guide rail, you can make it in one piece, otherwise, you have to make it in parts (height-wise). The new top part must rest on the highest part of the threshold and the laminate floor without being attached to the latter. The alternative to this is to saw off the threshold and make a new one. In that case, it’s not the first time in history that this has happened.

I agree with you that it can be made nicer than with a metal strip, but it's not something the average person usually has the tools to do. Cutting a metal strip to the correct length and then notching the ends with a hacksaw is something most people can handle, and it's a decent solution.

 

[KnockOnWood]

If you look at TS's first picture, how should it be able to hide an angular floor that also has chips from the sawing? ...

Yes, that will indeed be troublesome
Maybe by cutting a clean line parallel to the threshold.

Anything is better than those aluminum strips!

...
Also, you can't lay anything fixed against the laminate floor as it needs to be able to move.

No, they move very little, it's almost "dead" material.
But OK, we can perhaps agree that a millimeter of soft joint does the trick

 

[henkku]

If you look at the TS's first picture, how is it supposed to hide a jagged floor that has also been chipped from sawing?
Moreover, you can't place anything stiff against the laminate floor as it needs to be able to move.

Exactly what I was thinking too.
I think I've decided that it will be an alu-strip for this purpose, it will be easiest for me. Sure, an oak strip would have been nicer, but I'm having a hard time finding a sufficiently thin pre-cut piece in the hardware stores that also matches the width to precisely cover the gap between the floor and the door threshold.
I could cut one myself, but it won't look nice with the tools I have, the edges will just get frayed.