VR Google Cardboard - Help with using a ladder

Hi All,

I am relatively new to Unity so apologies if this feels like a stupid question. I am currently designing a VR platform game with multiple levels. I can walk around my game using the trigger on device which is working well, however I cannot work out how to use a ladder.

What I am trying to achieve is to use collision / trigger between player and ladder to transform player position to the top of the ladder.

Any help / direction you can provide will be useful.

Dan