Very heavy boxes,  recommend emptying one at a time with hardware before you start assembly. I "lost" one of the hardware boxes in the packaging and it caused me all sorts of issues. (and no you don't want to go back and do it over after you rig up screws). During assembly boards hit headboard and left a scratch, seems like it should be a bit more resilient. Pillows cover it so I'm not returning. Mattresses fit fine and it seems very sturdy for single person and 2 dogs. For the price am very satisfied.