I’d read a lot of reviews on lateral files. Either they are relatively cheap with complicated assembly or very expensive but pre-built. I took a gamble on this item, and have been pleasantly surprised. Came very well package, but it is a very heavy box. I assembled it without by myself, taking care to understand the instructions.Took me about 2hrs from unpacking to finish. One key to the assembly is when the drawers are placed on the rails, you do have to push down on each side to click/lock them in place. Final product is excellent, robust and much better than I expected. One nice benefit is that if you’re storing letter files, you can arrange them left to right, and use the full width of the drawer with no gaps. This allows for many more files and no loss of space than arranging them front to back. Of course its early days and we will see how this holds up with use, but for now, very happy.