They seem pretty sturdy but they are not the heaviest material. Someone wondered what they are made out of because they are lighter weight than they expected. The other complaint I have is that we had a TON of trouble getting them. They seem to come in either boxes of 2 or single boxes and this totally messed up the shipping. Took about 8 chats and calls to customer service to finally find someone to help us get the remainder of our order. So, overall, I think if I had to do it again, I would order a different set of chairs.