A bi-fold futon bed folds the mattress in half whereas a tri-fold futon bed folds the mattress into thirds. This means that a tri-fold futon bed mattress isnt as thick or as supportive as a bi-fold futon bed. Therefore, if youre going to be using your futon a lot for sleeping on, then a bi-fold futon bed mattress is a better choice. A futon bed mattress can be defined with the following qualities: weight, firmness, rigidity, and flexibility.
The other issue with the hollow bars is that if enough weight was placed on a spot they would begin to bend. The issue became so bad that a 90 day warranty was put in place by most manufacturers of these frames. Another issue the black metal frames suffered from were bending stretcher bars or rails. Again the hollow nature of these strecther rails presented issues with breakage and bending.
There are a few things that you need to consider if you are looking for a futon. What is my frame made of? How long will my frame last? Always look for a futon frame that is made from solid hardwoods, avoid any frames that are made from particle board or MDF. Measure width and the distance between the slats on the back and seat decks. Slats should be at least two and a half inches wide and if the spacing is more than three inches, forget it.
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