Kawai pianos are exceptionally heavy, robust instruments, a characteristic shared by all high-quality acoustic and digital pianos due to their dense cast-iron back plates, thick wooden rim frames, and complex string tension systems. Standard upright models typically weigh between 400 and 600 pounds, whereas baby grand and large professional concert grand pianos can range anywhere from 600 to over 1,200 pounds, requiring specialized professional moving equipment and experienced crews to relocate safely.