By Adalheid Voigt. Midcentury. At Friday, January 11th 2019, 19:16:22 PM.
The third option is web suspension, in which bands of webbing across the seat and back. These are then attached to the frame to make a platform for the cushions. Webbing can be made of either natural or man-made fibers, and if it is used alone doesn’t make for very strong support. In better-quality sofas, it is used with a tensioner that fastens the webbing securely to the frame. The web suspension is the least preferable of the seating support options.
There are alternatives to kiln-dried hardwood frames. Metal sofa frames are available, too, but metal can be prone to oxidation along with seasonal changes. Changes in humidity can affect metal frames, so look for one that has been treated to protect against atmospheric changes. Plywood frames as long as they are thick enough can also work well. As a matter of fact, many leading manufacturers now use well-constructed plywood frames.
Hardwood is wood that we get from trees such as oak, maple, cherry walnut and other broad-leafed deciduous trees. This type of wood is stronger and better suited to most types of furniture making. Soft woods come from evergreen trees such as pines and cedar. This type of wood can bend or dent easily and therefore is not suitable where you need strength, such as in sofa frames. So while it is good to look for kiln dried wood, remember to as if the frame is constructed from hardwood rather than soft wood.