The building, and what it does to the job
The chimney breast in the corner has usually been left in place, so the run gains a return and two scribed ends. The old top comes out in the morning and the new one goes onto the same units the same afternoon. Same units, straighter line, better surface.
Low sills under the sink window are common in the bungalows, check upstand height at template stage or you'll be cutting on site.
Casement handles and stays swing down into the space above the worktop, so the clearance that counts is the one measured with the window open. Sealant is not a way of fitting it, so the scribe is cut until it closes and the silicone only has to seal. The overhang is checked again once the feet are set.
