Stopped dead in our tracks when we found we were missing part DSQ and 20 screws DTK. No problem getting parts when I called but will take about 5 days to get the parts. Trying to inventory all parts before starting May b a good thing but prepare to take several hours to do so. There are a lot of boxes and bags that are not all well labeled. Make sure you have three people when doing the wall build, especially if ther is a breeze. Make sure doors get put up AFTER the complete wall build. Also, when doing the wall build, only put in top and bottom screws on each panel to start. You may need to take a whole side down and redo install when you get to last corner piece and find it is too long because the sections were not pounded together tightly enough.