A:AnswerHi Rose,
The corner piece is W19.5 x D19.5, the left section is W31.5 x D19.5 and right section W31.5 x D19.5 - for overall assembled dimensions of 51 x 51.
Thanks for your question!
A:AnswerHi! This is a great question! We recommend that each tempered glass pane not store more than 50 LBS on each pane, the desk as a whole can hold about 100 LBS. Thank you!