To start, the incorrect door was sent.  After almost a month, the correct door was delivered.  I hired a professional carpenter to put it together and install it.  He had the same difficulty trying to assemble it with inferior  hardware as many of the other comments in the reviews and recommended it be sent back.  After some major reinforcing of weak connections, he was able to get it hung.  It is extraordinarily heavy and rolls with difficulty on the track perhaps due to inadequately sized rail and wheels.  I handle it gingerly but could not recommend children using it.  All said and done, it is a lovely door but was probably not worth the poor engineering and effort of the assembly.