By Adalheid Voigt. Midcentury. At Friday, January 11th 2019, 19:17:07 PM.
The eight-way hand tied springs system is one of the best support systems. The craftsman connects each spring to the adjoining one with a strong twine. The twine passes front to back, side to side and then diagonally in both directions, thus tying each spring securely. Another method is sinuous spring construction. Sinuous springs are “S”-shaped and run from the front of the seat to the back. These springs are supported by additional wires that cross from side to side. This also makes for a strong seat, and it might be the preferred option in a sleeker style or smaller frame because it requires less space.
Down used in combination with other materials is also a good option but also another expensive option. Pads made out of a Dacron polyester fiber and down, known as Blendown pads, are wrapped around high-density foam. These pads can also be used with springs that have been wrapped up in foam. High-density foam surrounds the springs, which are then wrapped in down pads. The result is a soft surface with a strong, resilient support inside. This is a good option because the cushions do not lose their shape easily.
Kiln-dried frames are superior because you can be sure about the reduction of the moisture content to a satisfactory level. Another thing to remember about sofa frames is that a sofa frame that is made of kiln-dried hardwood is a much better choice than a softwood frame even if it is kiln dried. When you look for frames that will last, make sure to ask about how it has been constructed because that is just as important. A well-constructed frame has reinforced joints that are dowelled and glued and uses screws instead of staples.