A friend is installing a row of Ikea bookcases along a wall of his living room. Unfortunately the floor is far from level, sloping down from the walls (like most floors in old Edinburgh buildings!). And of course the slope randomly varies along the length of the wall (the floor is sanded floorboards and each floorboard is a bit different).
Is there any better solution than fixing varying thicknesses of hardboard to the bottoms of the bookcases?
-- Richard