New wooden floors warped.....

[Eldodgerino]

I've just begun to install some engineered wooden floors. However, in storage they have warped slightly. There is a lift in one end normally but certainly no more than 4mm at most. Is there a way to unwarp these boards or a way to fix them bending them back into shape?

There is a 6mm ply subfloor beneath

 

[Symptoms]

What type of 'engineered wooden' flooring? What do you mean by "There is a 6mm ply subfloor beneath"?

 

[WoodYouLike]

How did you storage them? If you place packs on strips of wood, the packs (specially with the thinner boards) will bend. Some boards will look cupped, some the otherway around (depending how they were placed in the pack: surface down or surface facing up).