Purchased the 8x7’ Trifold door to replace a rollup garage door on my wife’s art studio. We did the work ourselves! The door was well packaged and arrived undamaged. We assembled the frame easily and all measurements were exact. After lifting into position and securing it we mounted the three doors on their welded pins. They are very heavy and we needed three people to position and mount. After assembly and minor adjustment they open, fold, and close like they are the doors of a high end Mercedes sedan. Awesome! My wife loves the look and all the light they add to her art studio.