We currently live in an apartment, and as we all know, the rooms are small. My son is 14 but is already bigger than me. The problem I have now is that he is asking if there is a way to get some extra desk space in his room. This made me look into bunk beds where the bottom part is a desk. The ones I see on TradeMe mostly have a limit of 90KG for the bed part. My son is just below that. So was wondering if anyone can recommend a place that sells heavy duty ones or custom built?