It took me 3 1/2 hours to put together (by myself taking a break here and there.  Very easy, just know that it could take awhile. Very important read the directions.  Do not fully tighten the screws till you make sure that everything is level.  (make sure you  have a level handy.)    After I tightened all of the screws.  I tested it without the mattress. I stood on it.  It does not wiggle or move back and forth.  It is a great product.  Waiting on my mattress.  Thanks CJ