The following information will give you a good knowledge of the types of futon frames made. First is the most common type of futon frame called a Bi Fold. They measure 75" inside the arms, for full size, and 80" inside the arms for Queen.

You need to add the width of the arms, which can be between 2" each, up to about 6" each, to get the total wall space.

When opened as a bed a full size measures 54" from the wall to the front of the frame, and a queen measures 60". When in a sofa position they measure between 36" and 42" from the wall to the front of the seat.

90% of all futon mattresses or frames sold are full size. In a sofa position, the back of the queen frame and mattress stick up about 6" higher than a full, and can look strange, unless you are a very tall person, then you'll love it.

little more difficult to operate, with a quality futon mattress, than full size futon frames.

The average loveseat size futon measures about 61 inches - 63 inches from arm to arm.