Model Fert wagons height

[Dempsey]

Can anyone provide me with the measured height of a fert wagon from the base of the sleepers of the rail to the top of the wagon?

I don't have any at present and need it to insure I have clearance for a bridge I'm building on my layout. 

Thanks in advance 

[Broithe]

I have a test-track of Peco wooden sleeper Streamline on MDF.

I make it 58,7mm from the surface of the MDF to the top of the wagon.

[Broithe]

Mmm, I've just done it again from scratch and got 59mm, so you might want to consider 60mm as the absolute minimum 'safe' height...

[Dempsey]

Prefect, thank you very much