It might be a little complicated for the for someone that is not a hands on person. For me it was quite simple, I have put many items together like this , so I am used to not so easy instructions. But if you take your time you should have no problem. All the parts are marked with a little sticker and the screws and bolts and hardware are all separated and in labeled bags. Very well made and looks great!! . The chair opening is 21" wide, 25 1/2 " H, and about 19" deep. The top is 47 1/4 across and 21 1/2 deep. This is perfect if you have a small area and you don't use a computer chair with arms. All In All I would recommend this desk.