When we shipped our piano, Allied Pickfords made a custom wood crate and the crate was a perfect fit. The piano arrived without a dent but the crate did cost us $600 because it needed to use special treated plywood to clear custom. The packing company is good at bubble wrapping everything. We had delicate oil paintings and after being wrapped by heavy duty tissue paper plus bubble wrapped plus put inside a box, they all arrived safely so perhaps should discuss with the moving company if you really need to have special plywood boxes.