Took 3.5 hours to assemble which wasn’t the issue, the issue is that piece is very poor quality.  I bought it specifically for the hanging file cabinet and it can hardly hold any files without the entire drawer falling off the rolling track.  I will keep it but I would not buy again nor recommend to anyone else.  I really wish there was an online retailer to buy higher quality, preassembled furniture to fit smaller spaces.  I’d gladly pay more for quality and preassembly.