Solidly built. I have quite alot of experience as a carpenter and this thing took me a solid 2.5 hours to put together, and it didn't include enough wood glue nor any instructions as to which of the 16 compartments of screws/joints were the numbers that correlated with the ones in the manual. The instruction manual wasn't laid out ideally, however with about a hundred attachment components and wooden boards that alphabetically go to the letter 'W', I'm not sure how I'd make it any easier. The wood also scatches very easily. Assemble on a carpeted surface. All that said, I'm typing on a very sturdy desk right now.