I recently purchased a Casper foundation and metal frame. The packaging was amazing - the foundation comes in four pieces held together in twos by four pegs. You remove the pegs, line up the four pieces and put the pegs back in the corners and you're done! I was in shock at the ease of assembly. It took 5 minutes. For something so simple you would think it might have structural issues, but it is the most sturdy bed frame I have ever owned. I recommend their foundation and metal frame combo to everyone I know!