よっぽと体重かけたりしなきゃ大丈夫ですけどね。
ちなみに都産貿の机はもっと奥行きが広かったです。

They're fine so long as you don't put a lot of your weight on them, though. The tables at the MIT* are even wider, by the way. *Metropolitan Industrial Trade Center, or [i]Toritsu Sangyō Bōeki[/i], abbreviated to [i]ToSanBo[/i].