Questione giuridica chiave
Whether the cantonal court violated Art. 8 ZGB by relying on the invoice-based assessment despite the alleged lack of a measured quantity basis.
Decisione estratta
No violation of Art. 8 ZGB; the appellant attacked the factual findings and failed to show a legally relevant denial of proof.
Motivazione estratta
Art. 8 ZGB concerns the right to adduce evidence, not the weighing of evidence. The appellant had not timely and properly disputed that the invoice matched the plan-based quantities, and the cantonal findings were binding.