The door is high quality and heavy so we used two sets of double suction cup tied together by an aluminum handle. It took two men to carry it but the suction cups made that easier. mounting it ourselves went well also with two men and two women for the hardware help. We followed the instructions and made sure the coating label was on the outside for mounting. We have had no issues with spotting also following the video instructions to use a good quality squeegee and when necessary a microfiber towel. This is an excellent quality door.