This bench is fairly easy to construct.  It is a one person job if that person has some know how.  If not, you need two.  The screws are a bit difficult to reach on the underside but it can be done.  The bench itself is sturdy.  We have made this in a four foot and six foot.  We did add a board just to brace the six foot.  I don't think it was needed but it made me feel better.  We just purchased 8 of these for my son to use in his Eagle Scout Project.  I would not have purchased any other.  This is a great kit.  Yes, you have to buy the wood but it will last forever.