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Frequently Asked Questions
Why is height not fixed at the factory?
Because two things are unknown then.
The finished floor build-up.
And the fixture height required.
Neither is settled when frames are made.
Often not when they are ordered either.
How much can a floor build-up add?
Easily a hundred millimetres.
Screed, insulation and underfloor heating.
Plus the floor finish on top.
All measured from the structural slab.
Which is where the frame stands.
Is the frame's own adjustment usually enough?
Within its working range, yes.
The feet cover the ordinary cases.
Extension kits handle the rest.
A very deep build-up, or a raised fixture.
Check the range against both figures.
Which sequence goes wrong most often?
Setting the frame before deciding heights.
Then pouring the floor around its feet.
And establishing the pan height afterwards.
By then the feet are encased.
And the adjustment is gone.
Why do accessible installations bite hardest?
Because their height is specific and stated.
Higher than a standard installation.
And the requirement is not negotiable.
A frame set for standard cannot reach it.
Once the floor is around the feet.
What if a room is converted later?
The frame usually has to come out.
Which means the wall and the floor.
Raising it is not a fit-out job.
Where conversion is foreseeable.
Allow the range at first fix.
What should be established before fixing?
The finished floor level, exactly.
And the required fixture height.
Both as figures, not intentions.
Then check the frame reaches them.
That is the whole discipline here.