Outdoor furniture is an investment that needs to be constructed with quality in mind. It is important to ensure that all of the welds in the metal are strong. Check the welds, and if you find any that are weak, look for another piece. Look for something that will be able to hold up to the outdoor elements.
Thrift stores are a great place to look for furniture. Maybe you have never visited such a store. You can discover some excellent deals on furniture in them, though. You can often find nice smaller pieces, but once in a while, you may find a sofa that fits your needs.