It takes way longer than a day to put together. All the exterior pieces have a thin plastic protective coating, and it took me a day just to get all that removed. My fingertips were raw from pealing all that stuff off. You also need to add a plywood floor for maximum stability, which it doesn’t mention till the final step. It’s a lot of work, but I give it 4 stars for price. I like the color, too. I got it in green. UPDATE: The shed leaks. It caused some of my tools to get ruined. Wayfair only offered a 10% off discount on my next purchase because it was beyond the 30 day return time. There was no way I could have known it leaked sooner than 30 days because it too so long to build. Then I had to wait for rain. I rarely give 1 star reviews, but the terrible customer service deserves it.