Wall cabinets and flooring questions

This website is certainly the most helpful resource I’ve found so far in my extensive web searching –

some credit where it is due by way of introducing my first post.

Now down to the reason for the post – a couple of

questions.

1. I am in the process of hanging kitchen wall cabinets from a well-known DIY retailer. Having followed

their instructions on the positioning of the wall support brackets relative to the intended top position of the cabinet, I am

somewhat alarmed by how far out the cabinet is when it is first offered up to the wall. At first hanging, the cabinet sits

some 2 cm low, despite the fixings being bang-on accurate on the wall, within 0.5mm. What is the typical adjustment range that

these height-adjusters are designed to offer? Is it normal to find the cabinet this far out and to have to adjust it this much

to raise the cabinet to the correct wall height? As an aside, I have tried to adjust the height using the adjusters and have

got most of the way there, but the screws seem very hard to turn. I never know whether that is ‘just how it is’, or whether

I am approaching the limit of the adjustment offered by the adjuster. I am still a couple of mm low and the adjuster is now so

stiff I am struggling to be able to turn the adjuster screws. It doesn’t help that the only screwdriver that fits (based on

screw head size) is shorter than the depth of the cabinet and hence awkward to grip – I can’t get enough purchase and the

adjustment now needs some considerable force. Are these adjusters usually very stiff to adjust?

2. If you are starting

with a bare room, newly chipboard-floored, as mine is, does the flooring (finished) have to go down first, or can flooring be

added later? We haven’t decided whether to go for laminate flooring, or even something like a wood effect flooring made of a

lino-type material (both options clearly have very differing thicknesses). Partly because of not knowing what colour or

flooring type will look best until the kitchen is fitted. I’m assuming it is OK to fit the kitchen first, then add flooring

later and run it under the cabinets. Since the height of the feet of the base cabinets have to be initially set to the depth

of the intended plinth (at this point the cabinet is sat on just the chipboard flooring), fitting a deeper floor covering

later, like laminate, will necessitate reducing the height of the plinth to make it fit – is this OK or entirely frowned

upon?

Thanks in anticipation of some comments.