I’m not sure how long it took me to put this together but I easily did it by myself. I was also watching tv so I wasn’t really in a hurry, but it didn’t take THAT long. It’s a tap together style rather than using screws or fasteners so the only thing you need is the included mini mallet (which will be going into the tool drawer for future projects). It came with little rubber inserts for the top and bottom open edges. They just slide into the holes. In my opinion, they could have a bit of a tighter fit because as I was messing with the top shelf they kept lifting out and I had to keep pushing them back in. The instructions show that it can be put together several ways depending on how you will utilize the shelves. I chose to do the typical way as shown in the listing with the shelves on top. I glanced at the instructions but could have figured it out without. Once you do the first joint, you just rinse and repeat. There’s really nothing to it. The unit is actually 2 smaller units that can be used side by side, stacked on top or completely stand alone. I stacked mine to be one tall unit. Once put together we carried it into the laundry room and placed it in its new home. I noticed it wasn’t sitting near the wall on both sides. It almost looks twisted. I thought moving it might have loosened the joints so I lifted the shelves and gave them all a good tap just to make sure everything was in place. This might have helped a bit but it still looks a bit twisty. You can kinda see in the photos that the right side is very near the wall while the left side sits out quite a bit. The bottom was up against the base board on both sides. It should stick out from the wall some since there is a base board but you’d think it would be even on both sides. Anyway, I loaded it up and it seems to be sturdy. Maybe getting some weight on it helped it because I don’t notice it being off balance or wobbling or anything like that. It fits perfectly in the space I bought it for. Oh I almost forgot! Pretty much the one thing I don’t like about it is the veneer on the sides of the shelves. I prefer to use the white shelves so you don’t really see them against the white frame, but the front is the only piece that is white. The sides are brown to match the other side of the shelf. I feel like if I were using the brown side it wouldn’t really matter if the sides were white because they’d blend but using the white side, the sides being brown stand out rather than blending in. It’s just an irritation more than anything but wanted to mention it in case this will bother anyone else. Check out the pics for what I’m talking about. Also the shelves are pretty thin and just veneered, I’m assuming mdf. They will work for my application.Update March 14, 2022Just perusing through my reviews and decided to update to say I’ve loved having this shelf in my laundry room! The “twistiness” of it has not been noticeable or affected functionality for me at all. I honestly don’t even notice it now that I’m not picking it apart for a review. It’s a very sturdy shelving unit and I’m glad I purchased it. I would not be opposed to purchasing another one in the future if needed. (And I might to help organize my son’s closet!)