Levelling a timber floor Help, advice, information, answers and tips on all types of flooring from laminate and carpet to timber and vinyl

[hollies]

I want to lay new flooring in a kitchen without taking out the units. The existing floor is high in the middle and forms a "ridge" along its length .It drops down either side to the side walls.
I need to raise the sides to make them level with the middle so I can lay the new flooring.

Can you help