Look for foam that has a density no less than 1.2 pound per cubic foot. With foam, higher density usually equals a long lasting mattress that retains it feel. Natural fibers, mostly cotton, are good for futons that need more flexibility. For those of us that are traditionalists a natural fiber and foam blend is a good choice when looking at a futon mattress. The futon cover is the piece that buttons up the look of the futon.
No longer made only out of wood and cotton mattresses, several different types of futons can be purchased and used to create a living room suite or furniture for a family room. One example would be setting pieces next to one another to create a sectional. A lounge futon can seat one or two people and has no armrests. The only piece that bends is the one that supports a persons back or shoulders and is arranged so the person is sitting up or lying down.
Early designs involved a steel tooth design that would fit into pocket welds on the arms. These would snap off over use. The alternative design was to run a bolt through the arms and into the rails. While better it still did not address the issue of bending stretcher rails. Bent hinges also added another issue that would happen from use over time. While not as common as the other problems this issue still led to the failure of many black metal frames.
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