What gets asked for here
A corbel on show under an overhang is a decision about how the piece looks from a stool, so it gets settled alongside the edge profile rather than left to whoever fits it. Going from a 38mm laminate to 20mm or 30mm stone drops the surface, which shows against tiles, a window board and any freestanding appliance. The new pieces are nested, not traced off the old ones.
A managed portfolio tends to repeat one specification across every flat, which keeps later repairs and replacements simple to order. Cutting several kitchens from different slabs and calling them matched is where firms get caught out. Matched means the same block, not the same name.
