There is no need to assemble the totes! Our totes are all in one piece and ready to go. You simply unfold the attached lids and voila, you are all set. The totes stack and nestle into each other so that they take up less space. They come to you in a stack so you simply take one tote out of the stack, place it on the dolly, and start packing. When done, close and lock the lid, and you are ready to put the next tote on top. No taping and no fuss!