Pretty easy to assemble.  Definitely need 2 strong backs and 1 helping hand to set the roof pieces into place. Download the BILT APP and that will help tremendously. Read the directions and watch the App video, multiple times to get familiar. Put everything together exactly in the order in the directions. I accidentally skipped a step and had to go back and start over. Put this together by myself other than hiring the 2 strong backs to help put roof on. 2 THUMBS UP