The feet are important to ensure stability and durability of the wooden structure.
Delta uses pins:
1 - Metal
2 - Wood
3 - Polymeric Material
The management of the legs depending on the length of the sofa. For measurements higher than 2 meters, in order to avoid the effect of the warping drum, it is also provided a central support. In some modular models you can also have legs (hidden from view) on each module.