This sofa was very difficult to assemble because the instructions are far from accurate. It took me about five hours to figure out the dynamics of the sofa and where the pieces went before I was able to build it completely. I still wouldn't be able to tell anyone how to put it together because it was like a puzzle. My friend assembles furniture for a living and even he took several hours to build his sofa when he purchased it. My best suggestion is to locate where the armrests are first remembering that one of the drilled holes must remain exposed right in front of them. The longer box must be placed to the right if you are standing in front of the sofa; the smaller box to the left.  Another tip: the opening of the velcro should be forward facing on the smaller box and rear-facing on the larger box. I really hope that helps, I was ready to send the sofa back to Wayfair after about two hours. Once it's complete, it is a really beautiful sofa; good luck!