The bifold meets our special location needs. It is well constructed of a good grade of pine. The installation was straight forward. The instructions, however, leave a lot to be desired. They do not include a parts list. So labeling parts in the picture on the parts package is of no use. Step 2, track installation, should include step 8, inserting the snugger. In my installation there is a gap at the top of the door that required the addition of 1 14” trim.  Opening and closing the door is somewhat stiff. A .50 cent tube of graphite or silicon lubricant for the pivots and track would be appreciated in this 500 package.