I initially ordered only 1 headboard to ensure it would fit (I have 2 queen beds). unfortunately it only fit the "traditional "frame and not the new frames one sees with the online mattresses these days. glad I did not order 2- even with the plate to help fit a full size bed, I could not make it work. so make sure the frame will work if not the traditional type. 
It was very easy to put together- all pcs included and looks great. very happy just wish it would work on the other bed frame.